Is there any link for more details on this analysis?.
Looks like OP took the data from this website[1]. I don't know which specific report he's quoting here, but you can download them as long as you're fine with giving them your e-mail.
I think the market moving away from the top 2 exchanges is good. We don't want a centralization of volume since it adds more risk. That being said, I'm not sure if innovations like airdrops, pre-listing market, etc will last long enough to make the top 5-10 exchanges compete with the top 2 comfortably. CMIIW.
[1]
https://ccdata.io/research/exchange-benchmark-rankings