The gap between the attacking output of AWB and TAA is indeed enormous, but, as you say, so is the gap between Palace and Liverpool (although Palace were not awful in that regard - they scored more goals than Wolves).
Anyway, comparing Wan Bissaka to the league overall, of the 72 players who started at least 6 games at fullback this season, AWB was 53rd for crosses completed/90 and 60th for chances created/90, behind such attacking heavyweights as Joe Bennett, Matthew Lowton, Gaetan Bong, DeAndre Yedlin, Joe Bryan etc etc etc all of whom played for sides that scored fewer goals than Palace.