Is size the issue? or adjustment?
As a large 6'4" rider, I for one welcome the move to a bike frame which enables me to ride sportily without the need for me knees to be inside my helmet, and my butt cheeks gentle resting on each of the rear indicator lights.
Believe it or not, my favourite ride was the Thundercat, and have have been searching for that sporty fun, but with room, ever since.
I have tried adventure bikes, and they are an evolution in ergonomics for riders like me. BUT they lack the sporty flair that I so enjoy.
Its likely that I will end up on a K1300S, which seems to address these needs. The V4 of the Crosstourer has the potential to be huge amounts of fun, provided they get the ergonomics versus flickability balance right. We shall see.
Rugbybikers point on taller bikes, I have to disagree with, in as much as I don't believe the height itself is the issue, provided they build in a fair degree of adjustment to suit their target market. As for weight, that can be a non-issue if the rider fit is correct... and so we go round in circles.
The vast majority of bikes, especially sports bikes, are already built and designed for riders of 5'8" or less. Frankly to see the emergence of a genre which doesn't pander to this makes a very refreshing change for us taller folks. If only they would start doing the same with litre sports bikes too... I would be reaching for my wallet in a flash!