That makes sense, and I definitely wasn't trying to denigrate ST. Having not touched Windows since 2003, and having come from the vim world I had to learn a few aspects of Sublime to help my coworkers out, and just like you say, having to learn a new set of keybindings was a pain.
It uses the standard bindings I learned with Windows decades ago, and builds on that.
Vim forces me to change it all to the vim-like model.
It's about having to learn a new set of key bindings just for that program alone.