>>10532845They altered it on purpose, primarily because the original suits from the Sony Trilogy were all stolen from the suits and were never returned.
The MCU guys then decided to ultimately just replicate the suit as best as they could through digital means, resulting in the No Way Home Mask.
It's missing the cobweb pattern that the original mask had, the original's eyes, and the facemask underneath. Compared to the original, it looks like it was created by amateurs, which of course, it is.