The Daw popularity contest brings in all sorts of questions around companies interacting and relationships to hardware manufacture etc., folk just end up disagreeing and getting all wound up, I don't see the point in getting into all that noise! But yes it could be described as a trend.And I forgot another example -- Roland Fantom DAW Control. It took them two years to add S1. So yeah, a coding issue would seem like a real possibility. There's also the possibility that it's a popularity contest which the likes of Logic and Cubase win. But the fact it's a trend is indisputable.
I'm not currently on Omnisphere. I'm unsure whether to go for Ominsphere 3 and a nice keyboard controller like Komplete Control II or III (or maybe Yamaha MODX M7 which would be a keyboard controller on steroids) or just go for Kronos 3.
Anyway,
Omni has an extensive library and the filtering system to find sounds makes so much sense and also now with this Main screen being adaptive, just sounds so good. Obviously whichever way you go you will face a learning curve, it's to be expected and Omnisphere can be as simple or as complex as you want to go as Vst'i are concerned.
Was the question about keybeds...?
I found the NI Fatar keybed has a good feel semi weighted.
My thoughts, a good key bed gives a better feeling for velocity and finding the right one means spending a few hours in your local music store is my advice. I have arthritis and losing flexibility in my fingers so sadly I'm bit of a lost cause on that front.
All the best regards