Imagine being hostile against another well funded implementation ensuring there is no single point of failure and further reducing the attack surface by decentralising development.

Unless you have already influence in the current reference implementation and want to make sure your (shitcoin) agenda gets pushed through.

Same people that praised LibreRelay and told you nobody can stop them now being hostile against another implementation going the opposite way to not break and rush things and ensure Bitcoin will survive 1000+ years.