You could also say similar things about a lot of real-time games. Like when I played the original God of War trilogy I felt like I was just mashing Square for all 3 games because the heavy attacks and grabs just weren't worth bothering with. A lot of mediocre shooters have one good gun that you use for the whole game. So while I do agree that is a problem with a lot of turn-based games and the stigma may be impacting public opinion today, I think it's a problem with general combat (or even more broadly just game design) rather than something specific to turn-based.

I think a lot of games still struggle with this, and it's not unique to turn based combat or jrpgs.

One of the worst things you can do to a new player is dump way too many different types of tools and customization options on them all at once. The improvement many games made was to keep the player in a limited box for a tutorial phase, and then open up Pandora's box and give them oodles of new stuff to consider all at once.

A good middle ground is silently doing that (for subsequent playthroughs) while offering a more incremental introduction for new players. But any mechanics should get immediate reinforcement. My biggest nerd rage instance this year was Clair Obscur teaching you how to jump, and then almost immediately giving you an enemy that looks like it does a jump attack but really requires a normal dodge.