I don't know, man, watching people struggle to use their own DAW is not a good indicator of how the DAW works best.
I find Studio One's MIDI editing superior to FL's in almost every way. MIDI automation and such is much easier, since it's natively supported and doesn't require you to constantly search for parameters and create new clips. The only way it isn't is that the piano roll still has separate tools for pencil and erase; however, you can rebind these however you want (especially with the Nostromo I gave you), and just like FL, you can hold control for select. While you can't get it to behave exactly like FL... I use both DAW interchangeably and don't have an issue adjusting. Getting used to the different mouse tools is the basic entry challenge to any DAW really; but for what it's worth, as a long time FL user, I got used to it pretty quickly.
The piano roll started working for me a lot more because ghost notes aren't bound to isolated patterns, they're bound to all tracks in the song. Furthermore, you can select on the side the tracks to view and edit in the piano roll. That means I can edit my violins while viewing my violas, cellos, and double bass. Or if I want, enable them all for simultaneous editing. Or turn everything off and view a part in isolation (which is the default if you go to edit a MIDI clip). Or turn on the whole orchestra for simultaneous editing, or view the whole orchestra as ghost notes while editing all the strings simultaneously, etc. It's just like composing using different note colors in FL, except it's all managed for you and everything is still stored in separate tracks.
This offers the power to bring the entire song into one piano roll while still leaving everything separately organized in tracks in the arrangement view, something I think FL should take notes on.
I mean, I can't promise you that you'll love it the minute you load it up, but if you give it some time, I think you'd appreciate how down to earth it is compared to other DAW's. (The same way FL is)
The mixer is also a standard DAW mixer, so FL still wins in that department. For electronic stuff, I'm not sure it would cut it for you and your fancy processing methods. I'd recommend Live, maybe, or Bitwig. Also, Studio One 32bit can only load 32bit plugins, and 64bit can only load 64bit plugins. That's probably a dealbreaker for you.