I see you have a 1260. To me the difference between the pre-DVT 1200s and the 1260 is significant. The 1260 is a little heavier than the older 1200s, but it's the longer wheelbase and raked out front end that make it feel noticeably more "tour" to me. I had originally planned on buying a new bike in 2019, but backed away from the 1260 because it felt noticeably more cumbersome to me, when ridden back-to-back. I then waited for the V4, hoping it would go back in the sport direction, but we know that story. I've had the new bike itch for 2+ years now. Fortunately I still enjoy my old 1200 enough to not feel rushed into buying a bike I am not crazy about.We have similar use cases for bikes. I get it, in fact what you're saying is what I told myself when I bought my MT09. Less powerful, but it serves the same purpose for me the Tuono would serve for you.
There's just a ton of overlap in the sport-area between the two, and over the last season it's lead me to believe I might be better off with a true touring bike, vs. a hybrid like the MTS. Will I actually do it? Probably not, logic aside I'm not ready to do the Gold Wing thing yet, and I don't care for the ergos on the big Japanese ST bikes. So the MTS may yet be the best tool available, I'd just prefer to have more uniquely capable machines, if I'm going to own more than one.
The thing that changed between what I thought was going to happen and now, is the smaller naked bike taught me just how compromised the handling on the MTS is. It's big, and heavy, and slow on turns, and it feels all those things after riding the Yamaha. Not a fair comparison given that my MTS is stock and the MT09 is far from it, but there you go. Now, I don't want to take the MTS on those shorter ~100 mile rides anymore, because I know how much more engaging the other bike is. That leaves the Duc in a more pure touring duty, but anyway I'm sure you get my point.
Clearly, what I really need is yet another motorcycle.
The reviews of the MT-09 (especially the revised model) and even the MT-10 put both of those bikes on the fringe of consideration for me, but the styling keeps them there. The R1M is an attractive bike. I wish Yamaha had picked up styling cues from that bike for their naked models.