Because if they didn't, they'd probably kill themselves. They've done nothing of merit in anything in the present but are quick to point out past shit. Fans nowadays are on some old Janet Jackson "what have you done for me lately" mindstate (which they should be). You pay homage to the past...
Real talk right there; they want their 30 seconds of fame. Unless said hit knocks the other player to the ground and ends the play, it ain't worth shit - all sizzle, no steak.
And that's why they should've kept managers around; let them do the talking for guys who are horrible at promos. It doesn't help either that you have D grade comedy writers writing the promos for guys instead of giving them the bullet points and letting them be themselves.