This is a remarkable achievement by Everton, they performed brilliantly well in the second half by winning the match after conceding two goals earlier, congratulations to the team after a spirited efforts by the manager and his players to escape relegation paid off they really deserve to stay in the top flight league,
Everton has no choice except should win and win. Their point is crucial enough if they are lost, they may be in the relegation. This is not a good condition, that is why Everton tried their best performance and played optimally.
Moreover, they will face Arsenal in their last match which will be not easy, the chance to win is very small, and they will probably get 0 points. But at least, they have secured the point from the match vs Crystal Palace.
Currently, the ones who are worried about their position are Burnley and Leeds United, where their current points are the same. So it's just a matter of seeing who can get points from the next match, where actually their opponents are both strong.