The dab's been put through the ringer. It started off as cool, then it became a funny thing to do, then the joke started to wear off and it became kinda embarrassing. Now, it's just unforgivable. Give it enough time and hipsters will start doing it ironically, but it hasn't reached that phase of the social acceptance circle just yet.
Which is probably why Luigi dabbing in this trailer for the new Mario + Rabbids game trailer is making people cringe so hard.