Agree.To me it's obvious the VAR had no absolute certainty of whether the ball hit his arm. The footage they used for reviewing were so ambiguous/ineffective/blurry, In the end it's more of a benefit of doubt that they gave it to them. Because not giving it they may be under another stressful questioning after the game by Palace and media yet again while involving us. Also it's so late in the game while we were still leading, so they were just choosing the less detrimental outcome and gamble on that it wouldn't affect the result after all.
I remember a couple of seasons ago away at Brighton when Kane was hacked down in the box near the end but as we were 2-0 up VAR did nothing.
The lack of objectivity with VAR is frightening and renders it completely pointless in its current form.