If only the text on this were worded similarly to Black Panther, like so:
"Play only if your identity has the AVENGER trait. Max 1 per deck. You may play the ally tucked here as if it were in your hand. Action: If there is no ally tucked here, exhaust Avengers Compound → tuck 1 ally from your hand here."
I suppose the reasoning for the final wording is to avoid maxing out on reducing the cost of the ally and to avoid playing an ally and tucking an ally in the same turn, which I don't see the harm in that but maybe there's a weird power combo out there. But for my (purely thematic) preference, I would have liked to have been able to pair this with a couple Quinjets. Put an Avenger in the compound and then they fly out when the quinjet is fueled up and ready to go. Tuck a high-cost Avenger ally, and it would become a ticking ally reinforcement clock waiting to take off.
Thematically, would have been super fun and cool. Mechanically, probably clunky as heck.
I guess I could house rule this card and play it that way, see if there's a reason it's an action to exhaust to play the tucked ally, but I honestly can't think of one off the top of my head other than to limit how the tucked ally can be discounted or maybe to keep the cost of the compound at 0...?
Sometimes I wish there was a way to see the design and playtesting notes on some of these cards, just to see the thought process and evolution of the card.