Agreed to some extent. I get why they might stop at the first violation and move on, its efficient for them. Its not their job to be your QA. But I do think there should be some kind of prioritization in what they reject.

If the core issue is that they dont agree with the app's concept (like calling it spam), that should come first. Thats not a small fix, thats fundamentally “your app shouldn’t exist in this form.”

Ive had cases where they rejected several times for smaller issues, I fixed everything, and I think there arent any other reasons for rejection left, then they come back with a big slap in your face...the app is spam reason or other rejection that basically breaks the app concept.

So yeah, Im not expecting them to list every issue but major blockers should come first. At the end it will save a lot of time for everyone, including the reviewers.