It's safe to say the accuracy change always applies, because the same change was applied to ALL pet jobs.

As far as I can tell on avatar's favor, it now costs you more MP instead of less but no longer has any detrimental effects (no reduced attack/MAB and probably no effect reset on BP use, but that part remains to be seen.)

Atomos, I mean, we knew it was going to be a 1-hour ability, but they had SEVERAL years to come up with an interesting ability and this was the best they could do?