Perhaps it might have been different under prerecorded circumstances, but someone should have raised a concern or two.
That said, I completely understand why fans called out not just Major, but the competition show for letting it slide.
I watched the act myself, and the audience member seemed to very clearly state a different number than what Max Major presumably heard.
Making it worse, and all the more awkward, is that no one corrected him and the America’s Got Talent judges even looked downright confused about the whole thing.