“eating before davening, ba’krai, is in fact assur”
Even before Mincha and Maariv?
“Most halachos are complicated. This one is straight forward.”
It really isn’t. You yourself have to nitpick what “באקראי” is meaning when dealing with Rav Moshe’s teshuva. It also gets complicated when discussing the chiyuv of talmud torah because you can be yotzi that with a keveis of learning by night and day. So why should it be assur to learn secular studies at other times? Does this issur only apply to men or also to woman?
There’s a lot to discuss but you want to pretend that it’s straightforward.