Comment by lacker

The fact you want to "properly review them at a later point in time" seems to suggest a lack of confidence in the kernel review process.

Basically, yes. The kernel review process does not catch 100% of intentionally introduced security flaws. It isn't perfect, and I don't think anyone is claiming that it is perfect. Whenever there's an indication that a group has been intentionally introducing security flaws, it is just common sense to go back and put a higher bar on reviewing it for security.