Well if the lack of diversity of miners is only a function of profitability, then we should soon see more miners joining the Bitcoin Cash pool.

https://cash.coin.dance/blocks/profitability

This is the big question. Will miners continue to support Bitcoin Segwit when they can easily move to Bitcoin Cash for higher profit? Is there an emotional attachment to Bitcoin that cannot be overcome?

I think we are going to see a shift of mining resources towards Bitcoin Cash for monetary and ideological reasons.

Thanks for sharing this piece of info. The whole picture is yet to come.