EIP669 was a difficulty bomb delay. The difficulty bomb was never intended to make monetary policy. The point was to keep upgrades from failing to deploy due to node operator complacency. The difficulty bomb forces them to upgrade their code in some way, either to the upgraded version, or to the same old version with a bomb delay.

Issuance right now is 2 ETH/block. The white paper just promised 5 ETH/block forever.

https://ethereum.org/en/whitepaper/