same reason for letting the supe terrorists happen or kind of a flip on what Edgar told Butcher... she probably needed Stormfront/Vought to go up against to further her own agenda. This whole show is people using people.
I wonder something, though... the general pool of powers seems to be fairly specific... outside of the freaks in the hospital, that is. Flight, speedster, eyebeams (seriously, Homelander, Ryan, and some random baby have exactly the same heat vision) , varying degrees of invulnerability, strength... I wonder if they will touch on that later.