One explanation is that Microsoft is a collection of teams with different objectives. I suppose the security people would like something better than TPM to compete with Apple’s hardware security. OEM contacts will plead on behalf of their vendors to lower standards. And the sales people want to push end-users to buy a new PC that needs a new license. Ultimately everyone’s life at Microsoft will improve with users moving to Windows 11, to gain sales, improve the spying and to mitigate risks, and avoid bad publicity if problems arise with windows 10.