Homeguard already gives more benefit to a defending team than an offensive team... I don't want games to stall out even more...
I completely disagree with its removal as a purchasable option. Sometimes I'd purchase homeguards pre-20minutes and sometimes not until post-35. Making it automatic at 20 seems weird. I don't think it should be an explicit comeback mechanic where only 1 team has access to it though...
I do however think the TP-Homeguard mechanic was silly and rather than the speed lasting a set amount of time it should last until you either enter combat or get X distance away from fountain. So if you want to run around your base out of combat for 3 minutes with homeguards you can do that, but you can't TP with it. Would have eliminated a lot of problems we've supposedly seen with it.