I read that thread about 'getto-hearthing' from WG. But me and a friend had joined a 2v2 skirmish queue, then he left and got hearthed. (His HS was on cooldown afterwards ofc)
It will, undoubtedly, be common sense to a lot of you but to others (us who don't do Arena) it may be useful to know.
TL;DR - Join 2v2/3v3/5v5 and leave it to get hearthed.