HPs are account wide
Meaning you do them once and all alts get them
HPs no longer have any mastery gating
except for the baseline abilities needed to get to them (gliding and such, meaning get rid of the lore 4 reqs, poison, etc)
This leaves them still challenging while getting rid of almost all complaints (champs can be further tuned as time goes on.) And with the guides coming out if these changes are done simply getting to them will be the only hassle, or finding a party, so you should be able to do it in a full day, or a few for the 1 hour play time crowd. Much more reasonable IMO and compromises between both schools of thought (auto getting them and working for them.)