I have also written about 1) how it is that anecdotal wisdom based on lived-experience of the eremitical life provided by canon 603 hermits is something bishops hear regularly, and 2) that the Church as a whole either benefits or suffers and is disedified by those hermits claiming to live eremitical life in the name of the Church. This will naturally mean that in some ways the Church approving such lives as instances of genuine and well-discerned eremitical vocation becomes disedifying or even scandalous to others as well. When that happens the credibility of both eremitical life, the Church, and the Gospel itself are impugned. That is what we are concerned does not occur. Stated more positively, we hope that through our eremitical lives and our reflection on them (and on counterfeits or distortions of them), the Church has what she needs that God may be glorified and the good news of God's Christ be powerfully proclaimed by all hermits, both consecrated, lay, and ordained.
Since the very word hermit comes freighted with associated stereotypes and problematical connotations (misanthropy, eccentricity, narcissism, isolation --- including from the Church herself), and since the canon itself must be read from within the desert eremitical tradition (it cannot be read merely by looking up the words used in an ordinary dictionary in the vernacular), the only solution to all of these difficulties requires dialogues between the episcopacy, canonists, canonical hermits living the life defined in canon 603, and others who are expert (or have relative expertise) in the eremitical tradition.
The simple truth is Canon 603 is different than its Episcopalian counterpart. It does not merely outline characteristics of a solitary religious life vowed to discipleship through profession of the evangelical counsels lived outside of community --- much less merely allude to such vocations as Canon 14 does. (In the Episcopal Church only about 5% of those professed under their canon for solitary religious are thought by some to be living a truly eremitical life.) Instead it defines a specifically eremitical life, a desert spirituality of stricter separation from "the world", assiduous prayer and penance, and the silence of solitude (a rich phrase which represents not only the external context of the life, but its goal and charism as well) lived for the sake and indeed, the salvation, of others. In other words, c 603, unlike its Episcopal counterpart is not meant to be used as a stopgap means to profess individuals who either cannot or desire not to be professed as part of a religious community but who at the same time, are not called to true eremitical life. And this makes c 603 more demanding, not only in the lives of hermits living its vision, but in its implementation by dioceses.
For instance, it is not unusual for canonists to draw on the work of hermits and the history of eremitical life to come to a fuller understanding of dimensions of canon 603 and to ensure better implementation. The canonist criticized by the blogger you cite is doing a dissertation for her doctorate in Canon Law on a central element of the canon (viz., the silence of solitude as reflected in the Rules of diocesan hermits) and she is drawing on some of the Rules produced by diocesan hermits as well as work done on the nature of the canon and life itself (including, I suspect, some of the occasional writings found in this blog) to complete this project. All of this will become part of the ongoing conversations ultimately protecting the proclamation of the Gospel by those seeking to live solitary eremitical lives which truly glorify God.
If one illegitimately or illicitly claims to have embraced a public vocation (even if one claims to have done so in a private ceremony) one cannot then complain that what is really a private matter is being examined and discussed by those in the Church with an established stake in the vocation itself. While none of us who are publicly professed and consecrated live this life perfectly, and while neither the Church or our brother and sister hermits expect this of us, we each know that the witness and mission of our lives can generally become part of a completely valid ecclesial conversation regarding such vocations occurring at various levels in the Church. To complain that such general attention to our lives is invalid or even somehow nefarious is to have missed part of the import of really being a Catholic Hermit.