No, they're not. There are Apple-published UI guidelines, there are decades of User Interface research, and there are time-motion studies to back what I'm saying.

FWIW, I've been paid thousands of dollars as an outside consultant to just look at an app provide my initial feedback. If it were just whimsical, subjective musings, I can assure that would not be the case.

I don't know you and what you say won't give you more credibility. Your points are subjective because they fall under theories.

Don't point them out like facts.