They down played the move extremely well... Twin Cooling available only on SELECTED bikes...
They are not stupid... they are playing their cards well.
You really think from a marketing perspective they've done well here by not touting the system at all? I get the impression they're afraid of their own (wet) shadow. But nowhere do they use the words wet or water.
It's a band aid attempt at water cooling for sure. The only thing they're surrounding is the exhaust valve. Hell, I'd be embarrassed by the effort too. Especially when I had to hang all that chit in the front for one water circuit around a single valve on each side. But it's still (by MoCo standards a significant change. So yell it from the roof tops. It's not like they have the option of going back after all. Rest of at least the touring model line will have to follow on eventually. So make your damned case. Explain why it's necessary and what the gains now and in the future can be.
But... we forget, Harley doesn't actually sell. They expect us to come them "just because." Because we always have. So if something really is radically different they're afraid we'll pull a Monty Python or a Doctor Who and "run away, run away." It's a pusillanimous way to pitch your product MoCo.