That trend is because a lot of them start life as “light novels” (similar to young adult novels, have a few scattered pictures and stuff), and those are intentionally titled so you have an idea of what you’ll be reading, because there are a freakin’ lot of them. It’s basically the synopsis blurb, just as part of the title, so you read it while looking for a book rather than going out of your way to know what its about.
Manga titles are becoming:
Edit: although that’s more of an ecchi title? 🤔
Have you read the sequel?
The third party of the trilogy is where it really gets good:
I was reincarnated as a stupid moron with an ugly face and a big butt, and my butt smells, and I like to kiss my own butt
That trend is because a lot of them start life as “light novels” (similar to young adult novels, have a few scattered pictures and stuff), and those are intentionally titled so you have an idea of what you’ll be reading, because there are a freakin’ lot of them. It’s basically the synopsis blurb, just as part of the title, so you read it while looking for a book rather than going out of your way to know what its about.