what makes me think that APSs are not a real factor either way is that everyone slaps ERA and anti-drone mesh on everything, which would interfere with radar. APSs historically had a huge blind spot on top, which is a bad thing in a war with drones. also, major user of APSs, IDF, slapped anti-drone grids on top of their tanks at the beginning of current Gaza war, so kinda probably that means that they are not really sure that it works good enough