The Eagles led twice at Selhurst Park on Saturday but they ultimately had to settle for a share of the spoils as their playoff hopes were dealt a minor blow.
"We're disappointed with that having been in front twice but it's important to have got a point," Holloway told Sky Sports News.
"I would have preferred two more but you've got to take what you can. I was impressed with the courage of the lads and we scored two goals, which we haven't done for a while."
The draw has seen Palace drop down to fifth place in the Championship table with two games remaining.