I see nothing wrong with delisting private coins from centralized exchanges. Any centralized exchange contradicts the ideology of private coins. I think it will be good if they are used for what they were created for - which means they will go past centralized exchanges and will be used directly by people.
That's true, but there aren't really that many people who transact between each other, so privacy orientated coins fits nicely on decentralized exchanges.
XMR is dominating the volume on Bisq from what I can see, twice as much volume compared with BTC, which is pretty damn surprising.
XMR has recently been added to Blocknet's XRouter, which is pretty damn cool
So has NEO, so they are definitely making good progress, (Yeah I hold NEO, so this is good news for the NEO community as well).