This should be getting a lot more attention. NXP chips are in a lot of products. It's likely the TA knows of specific flaws reported to NXP that can be leveraged to exploit devices the chips are embedded in, and that's assuming they didn't implement backdoors themselves. Over 2.5 years (at least), that's not unrealistic.
https://www.tomshardware.com/news/chinese-hackers-steal-chip-designs-from-major-dutch-semiconductor-company