Cardiff City boss Lennie Lawrence was upset that once again slack defending had cost his side victory.
With the deadlock finally broken in the 82nd minute when John Robinson netted, the Cardiff defence went asleep and Mark Williams was left unmarked to head home the equaliser just a minute later.
"We tried to avoid end of seasonitis and did up to a point, but this was a typical end of season encounter," said Lawrence.
"Once again the crowd were great and I thought we would send them home happy with a victory, but once again a piece of poor defending has cost us.
"So many times this season we have let ourselves down with slack defending like that. We have lost too many home games this year to be in with a shout of the play-offs, but we have to kick on and get better and perhaps the experience gained this year will help us next season.
"We have been caught out too often on the break and that is one of the things I have to address during the summer." It may have all been different if Welsh international Paul Parry had not been taken off in the 33rd minute, as he had shown signs of opening up a Dons defence that had leaked 88 league goals this season.
Wimbledon boss Stuart Murdoch was well pleased with the point his side had earned.
"We deserved a draw and would have been very disappointed had we lost. This is the third side we have had to build this season and they are now coming together nicely and we have been playing well over the last five or six weeks without a great deal of reward.
"I hope we can keep all the players here for next season as they battled very hard during the game and earlier in the year we would have lost this match 1-0.
"We are aiming to give it a good shot with these lads in division two next season."