He means that the feature requests that tend to be prioritized are those working in a Composition market segment. This includes Film Composers, who routinely use Synths in their productions.
However, things like the Clip Launcher that Logic Pro and Digital Performer added aren’t things that are prioritized for Cubase, because Steinberg deprioritizes those market segments.
He didn’t mean “composer” in a “strictly orchestral/classical music” sense. He meant that specific market niche. Hans Zimmer is in that market niche.
The areas of the market where the most “growth” is to be had is not in that market niche. It’s a nice niche, absolutely, but I think other DAWs are dipping their toes into other waters specifically because they want growth. Not simply to sit in the same market segment yelling the same names that many of the people entering the market really don’t care much about.
That being said, there is nothing about Cubase that stops anyone from making Hip Hop. There isn’t really much that is needed, except a long overdue update to Beat Designer, which feels like it hasn’t been touched since the mid-90s, frankly. But one could easily just make beats in something like MPC or Maschine (or FL Studio) and just bring the drum stems or whatever into to Cubase - or even use either as a plug-in - if you really want that kind of pattern-based/sampling workflow.
If you want something closer to Ableton or Bitwig, but still want good composition/video features, etc. then you’re going to have to look at something like Digital Performer or Logic Pro, frankly. Maybe Studio One, but that depends on if you work with video a lot (or if they add a video track and improve that before you decide). If DP wasn’t so expensive on crossgrade, I would get it just to see if I could get used to the workflow. Maybe over the holidays they will have a discount.