"Wtf, we already scrapped TEEs in 2019, how can people forget" - common complaint floating around now

Isn't accurate. Current discourse isn't "forgetting" and pushing the same approach again. 

The landscape has completely changed since 2019:
- [1] Alternative risks to not deploying enclaves have increased. Eg: risk of casino winning
- [2] Complementary technologies that patch up enclave shortcomings have been productionized. Eg: zkVMs
- [3] Clearer now that exotic forms of cryptography won't get the job done anytime soon. Eg: attribute-based encryption
- [4] New virtualization-based enclave designs available. Eg: TDX

This is technology. Trying old ideas again under new conditions is the backbone of our innovation cycle.

If "we've tried that already" was our industry's motto, we wouldn't have Tesla, Oculus, or even Bitcoin.