I, for one, agree with you.
I’m primarily a Reason user, and most of us believe that the DAW needs major work to become more professional and competitive. Reason Studios have made very few efforts to move things along, and are primarily focusing on promoting the Reason Rack Plugin to be used in other DAWs.
Studio One is on the other hand a bit, ahem, boring, and would do well to integrate some of the fun, creative, and often useful aspects of Reason. Not just the instruments, but the effects and players (midi processors, essentially) as well. Many of the newer Reason devices are truly excellent (and many older ones, while in need of some updating, are great usable classics), but they tend to get overlooked by people who aren’t interested in the quirky, somewhat arcane Reason working environment.
Personally I feel like Studio One suffers from lacking a native audio pitch and articulation editor (using Melodyne with ARA is pretty awkward, imo), while Reason has an excellent one built into the DAW. If the two merged, Studio One could adopt the Reason one.
Realistically I don’t see it happening, but I would personally like it if it did.

