Jessica Vosk played Anita in The Bernstein Centennial Celebration at Tanglewood back in July. The concert will be broadcast on PBS’ Great Performances series on December 28 at 9 PM.
I'm not sure how much of West Side Story they performed in the concert, but they did "A Boy Like That" at the very least. Vosk is obviously not Latina but she sang the song very well and, yes, in an accent.
Vosk posted a clip of the song to her Instagram and within minutes, got horrible comments about how she's racist, responsible for whitewashing and the erasure of Latina actresses, etc., and she deleted it thereafter. She posted to her story about feeling badly about the whole thing. I think it's horrible considering she got hired for a job and, well, did the job. She also played Anita at the San Francisco Symphony in 2013 or 2014, so the Bernstein concert creative team ostensibly knew how good a job she could do in the role. But we just live in a time when everything is offensive.