To answer some of these, Apollo was created well before the Reddit redesign, I started working on it back in 2014.
I'm not sure I 100% understand the criticism though. Inviting you to scroll through an app is a pretty normal thing, isn't it? What's the alternative?
I'm gathering you'd prefer more of a comments-focused experience rather than one focused around the posts themselves specifically? I've been on Reddit for over a decade, as far as I remember the posts have always been paramount and what attract people to the site, even though the discussions are great too. They're just a tap away. As you mentioned you can go into compact mode, then disable the thumbnails and you've basically got Hacker News, haha.
Your criticism seems like more of a comment on Reddit as a platform/community rather than a specific app (though I'm not sure what you mean by "old Reddit", Alien Blue?), but if I'm wrong about that I'm happy to hear any criticism.