the motivation is to make it easier for Ethereum miners to switch to Conflux after the merger,
Easier? It's just software. Why discard your own POW algo for one abandoned by its biggest user?
It seems pretty cynical and desperate.
Good free advertising. I have never mined this coin, but maybe after the completion of ethereum mining I will try.
Most of the miners used only the Ethash algorithm, and this will attract more newcomers to the mining of this coin
https://bitproit.com/gpu-mining-profitability-after-ethereum-merge/