Apologies, I am afraid as I may not be able to incorporate/address all the concerns expressed in the thread due to lack of my understanding in this space.

But I have created a new PR which addresses Yi Li concerns about constraining the changes only to CryptoPkg.
EDK2: PR to enable ECC Ciphers in OpenSSL(Increase DXEFV) - Mar 3 - Iteration 1 by vineelko · Pull Request #2583 · tianocore/edk2 (github.com) ( https://github.com/tianocore/edk2/pull/2583 )

I appreciate your time and feedback.

Thanks,
Vineel