I have my characters on level 31 in Tales of Symphonia: Dawn of the New World and they can still be absolutely creamed by enemies that, technically, are much weaker, like 7-10 levels weaker! So yeah, enemies remain stupidly overpowered and that reflects poor design. I mean when you deck a dragon with ease but get your backside handed to you by a leech that's about a fifth of the size, yeah, something's off.
Yet, I do so like the world its predecessor set up and seeing the characters again is fun. It's on track to be the weakest of the Tales series I own and it has some horrendous blunders, but I'll likely see it through to the end - if only by the strategy of ensuring my gang is 10-15 levels stronger than their enemies at all times.