Maybe so, but does that change the fact o the matter that MK's weaknesses are:
1. Has no projectile or sufficient defense for them.
2. Like many said, relies on edgeguards for kills.
3. All that footwork and very little "oomph."
4. Though you may get away with some power hits and cheap shots, MK lives breathes, and eats combos, aerial and on the ground.
However, I am willing to acknowledge the possible strengths for these disavantages.
1. With his speed and BV, requiring some skill on your part, this is defense enough for him.
2. His speed, aerial capabilities, and fast attacks make him an edge WALL.
3. With all that footwork, hit n runs, dodging entrances, and BV will let him through many defenses.
4. Like 2, his speed and aerial capabilities help him here.
However, MK fans, there can be no possibility for a loophole for these:
1. His weight. He is floaty and can be launched into the air like a volleyball. This and his lack of a projectile attack force MK into a close up game, and against almost every char, this spells doom for MK. If he gets even smashed once, this could spell the end for him..
2. His Final Smash. Looking through the one hit kill popularity, it is awkward to land. Your foe will need to be in front of you and somewhat in the air to utilize this properly. Other one hit KO FS's like Ike's are sure fire hits at close range, which require the foe to be only in front of him, and even then, you can juggle all three opponents at once if you are able to. With MK's, you'll need luck.