I don't think they've utilized airports given the review is based around Zeros.What? probably the best of all tenets. The free airport in every city is a cheat code. And I like it. Without it, conquest on larger maps would take too long and be too boring.
It's the main reason to pic autocracy at all. Take city, beam in units for blockade, move planes and your foothold is secured. Only nukes can spoil this.
I kind of want to propose to nerf airlifts because of how OP this tenet is but at the same time it does speed up late game war. Tricky decision.
Being able to airlift entire armies shortly after discovering triplanes is silly, but nerfing airports just commits the player to more micro because you could get all your units where they need to be... Just with more clicks.
Maybe airlift shouldn't work if the city isn't at full HP?