I only hate people that like NTR. Most of the people in the net I've interacted with that likes NTR are legitimately mentally ill or a shitposting retard. Sometimes both.
Literally anything that doesn't look like it's drawn by a five year old is a good cover. Some say don't judge a book by it's cover but I will definitely judge your book by it's cover if it looks like a child's doodles.
All of the things you described can be summed up as shit writing by japanese authors. Mushoku Tensei and a few other isekais don't have this problem. They mostly focus on wish fulfillment and stuff anyway so they don't expect good writing. You don't really expect masterpieces in WNs. Well except...
Cavalry isn't underrated. Most authors just suck, don't do their research, and underestimste how a group of galloping wave of death cavalry of death can annihilate an army if done strategically.
5 - absolutely amazing
4 - rough around the edges but pretty good
3 - average
2 - way way below average but not utter shit
1- absolute garbage that nobody should touch with a ten kilometer pole even ironically
Weebs in general are cringe. Especially the so called "ironic weebs" that like only flavor of the month anime and buy a shit ton of merch just to display "haha I love anime isn't that quirky and cool I win the internetz now". It's fine to like anime but making that your entire personality makes...