That's also because M&L requires more attention to get the timing right. You need to look for cues who the attack will go to, see if you can jump on the attack or only over it, hold the dodge button rather than press, or multitask when both bros are being attacked. Or sometimes, DON'T jump, because you then take damage. The games are puzzle/action games with JRPG elements slapped in.

E33 is extremely telegraphed (barring the very rare jukes) so it needs to compensate with tight timing and erratic animations, requiring both higher skill + trial and error. Sometimes have to press another button, but you don't even need to figure it out (I tried to jump some attacks because of Elden Ring habits lol), the enemy or whole screen telegraphs it. It's a JRPG with action slapped in, at its core at least.

For another example, Deltarune and Undertale are basically action games too, but do a lot of stuff with their dodging, sometimes even switching genres to platformer/shooter etc.