Fucking up, even a little bit, hurts a lot more in Marvel since combos can lead to death even at high health. Where choking it up in say, SF for example, has a much lower chance of causing you to lose the round/match except in specific situations. At the very minimum, it usually costs you a ton of place, way more than other games.
Getting outplayed would entail not being able to answer what your opponent is doing offensively and defensively, It boils down to whether you are are at their mercy not when it comes to those choices, I think. This doesn't quite as often in Marvel because of the death combos but the best example off the top of my head would be when Fchamp plays against any Haggar and is just zipping around the screen with Mags to avoid pressure and to deal damage that Haggar can't do anything. That's getting outplayed, to me.Not the joke outplayed but an actual outplayed, lol