Unpopular opinion: The Core/Knots diversification in Core is actually healthy.

In a healthy decentralized, open source cryptocurrency, there should not be a single node client dominating the network.

"Hijacking Bitcoin" outlines very clearly why this is a problem, with historical evidence.

Bitcoin Cash has traditionally had multiple node clients on the network. It even started out with at least 4 actively developed ones, and has always had multiple ones over the last almost 8 years. This may have devolved a little into single client dominance, which is not ideal from an anti-fragility perspective.

Client software diversity is something to preserve and foster, the risk and impact of an accidental chain splits due to a client bug it is evidently overblown (perhaps something of which Satoshi was unduly apprehensive).