I believe they will, and if they don't the 'moral ground' they stand on will be ripe for the taking. Whether it's Ocean or something else, I believe Bitcoin is better off with a pool that strives for decentralization of mining efforts.

As you say, Lightning is an easy win - I do wonder what's taking them so long though, as well as the smaller payouts, it's not like they're winning anything with it other than holding onto whichever miners they take for a slightly longer run. I believe it may be a strategy to build an initial but stable hashrate.