It's a matter of philosophy; would you rather have multiple small apps that do only one job or one "super app" that does it all?
Ironically, starting from the former, I've now turned my tmux into the latter with so many utility apps integrated into it. But now I can see the benefits of each approach. Maintaining "super apps" is more challenging due to the coupling of so many pieces to each other.
And building a consistent good experience from isolated tools is even harder. The problem is just hard and I think good criteria with the super app approach is the way to go.
I really like Spacemacs. It's discoverable, extendable, quite consistent.
If the "super app" is modular - like Emacs is - you basically get the best of both worlds.