The MU is actually considered to be one of our better mu.
I believe character CP in this game helps. There are MU'S I personally just can't mentally (Lucario vs yoshi) deal with and I've tried for months. I think Jaice is a good example that multiple characters don't slow you down and me personally, I had better results when I played dedede and m2.
This is so true for me. The character counterpick is basically completely mental for me, even if a matchup is worse for a certain character I may just have the right mindset for that particular matchup