I would like to posit my personal observations regarding "home-aloners."
They are individual traditionalists who are of the opinion that it is not licit for one to attend the Chapels of clerics ordained to Holy Orders and clerics promoted to the sacred Episcopacy in material
violation of the Code of Canon Law, and therefore bereft of jurisdiction in the external forum. Furthermore (and this is something that ought to be emphasized), they advance this opinion authoritatively and absolutely, and pretend that individual consciences would be bound thereto. In this they exceed their capacity as mere layfolk and usurp authority that is not theirs, and demonstrate the lack of either good will or proper understanding.
I don't think this would apply to Hermenegild (at least the latter half), since he wrote:
If one honestly believes that going to independent priests or bishops is the right thing to do then I respect that because I’m a nobody – just a simple Catholic trying to work one’s way through this great mess that we were chosen from eternity to live.
Interesting tangent: those who invoke the principle of Canon Law in order to discourage others from attending traditional Catholic Chapels seem to forget that Canon Law also forbids layfolk [and clerics] to publish written paraphernalia regarding faith and morals without the consent of the local Ordinary (Can. 1385). So, basically, everyone is in the same boat: a mariner cannot deride his fellow mariners for standing on the deck just because he attempts to climb up the mast in order to say he is not really on the vessel, to use naval imagery.