A few things:
One, there seems to be certain sins that one can be redeemed from (eg., ABC employee Jimmy Kimmel and Ted Danson appearing in black face in recent years) and those who cannot (Megyn Kelly asking what the issue is with blackface). Second, there does seem to be some calculus as to how sincere the apology or attempt to remedy the “sin” is - was the attempt to recompense sincere, or is it a marketing/PR driven directive? Third, at least with the “free Palestine” comment, it seemed very oddly timed and, absent any other history of her supporting that cause prior to that, was viewed as a pretty explicit demonstration of her being an ally to those who were demonizing her co-star at the time (the first trailer had just dropped and Gadot was catching a lot of anti-Semitic hate in comments and social media). To the last point: has Zegler apologized publicly (or privately) for the pain she may have inflicted upon her costar?