TGIF adventurers,
(and adventuring fellows!)

Sorry for the delay on this but I was able procure some information from the development team regarding adding pet buffs to your adventuring fellows.

If they were to unlock the ability for adventuring fellows to receive AoE buffs from (for example) avatars, it would allow for other pets to receive these buffs as well. Therefore, this currently can't be done.

Hopefully this will cheer up your fellows though:
A few of you asked in this thread if we can summon adventuring fellows in areas that are currently restricted. Development is actually looking into this as we speak! We'll keep you updated as we progress~