This sets a dangerous precedent going forward for the Android community which sideloads applications onto their phones, being that APKMirror is the largest mirror of APKs for Android phones. It's also possible for them to add more apps to be included under this bill, and possible for another bill to be passed which may act as an even more broad blanket to target specific groups of people (e.g. LGBTQ+, people of color), messaging applications that are truly secure (e.g. Signal), and so on.
Then of course there a very real possibility of our president forcing the integration of software updates into both Android (and possibly even iOS smartphones) that can forcibly remove applications for the "sake of national security".
I'm not faulting them on that. The law is very unclear right now and I'm sure they don't want to get caught up in the drama. They are tiny compared Google Play do any lawsuit or public attention would crush them.
Governments and ISPs should not be allowed to block anything. Deliver my packets and don't meddle with them. Giving them that power will lead to abuse.