No, surprisingly. I've been wanted that, ever since Melee, and when I hacked Mewtwo into Brawl (unreleased), That was one of the first changes I made, and that was waaaay before PM Mewtwo was shown to people. I also wanted disable to hit on both sides, because regardless of it being an "eye-contact energy beam" it's still energy. And it shouldn't be bound to one direction or side. There are so many changes that I wanted and still do want for Myuutsu, some that none of you would be able to conceive (no offense).
For a worth opponent, this is one of the dumbest things I have ever saw you post (since technically I didn't "hear" it). If you read Mewtwo's trophy description carefully, you'll realize that the creator's intent was never for Mewtwo to be a defensive character, he was supposed to be a tactical rushdown character hence the "If you're willing to risk getting in close, it might be worth it!". to me, I personally think that this is saying that while Mewtwo has a lot of weaknesses, he also has a lot of strengths, and if you rush people down, then you can find success, and you can fulfill the mission to make the worlds' most powerful pokemon.
One of the primary problems with us Mewtwo players is that we think that just because our character is light, that we have to play defensively to accommodate for that, but that isn't entirely true. I am not saying that defense doesn't have it's place. In fact, I think that if you get launched upwards, or offstage (regardless of if they pursue you or attempt an edgeguard), you should drop the offense and focus on mindgames/surviving. But during every other circumstance, keep rushing your opponent down, 'down on the ground.
Also, edgeguarding is a cheap and ineffective tactic. Literally anytime somebody tries to edgeguard my Mewtwo, I uair them and I continue to rush them down. You'd be better off just pursuing them offstage like what I do, because at least if you miss, you can recover back on stage with them, so as to land on the exact (or close to exact) area that they're going to land on to ensure an onstage punish (like a Smash Attack).
I know for some this might be a lot to take in, but it'll be worth it, and for those who are already good and able to comprehend this, you all should probably pay attention to this anyways, as it could help to make you even better.
In addition, if anybody wants to Smash right now, I'll be open