Everyone used TextMate, then everyone switched to Atom, then Sublime, now VS Code. I've played around with them and it's always a question of spending time trying to get the keymaps "right" and which plugin do I use on X to replicate the functionality of X-1.
You want to yell at Bare Bones and say, you must implement .tmLanguage or .tmTheme support now! You must support Python as a scripting language and get rid of AppleScript! You must, you must, you must!
But BBEdit doesn't break, and when it does release a feature comparable to the rest of the pack, it's solid and "fits", aesthetically and functionally. (Their recent "command-p-alike" is great, for example)
It doesn't have a giant themes or plugin site, but it can open files as big as your available RAM while staying fast. I'll give up a nice TM theme for "always works and never crashes".
(Please make JavaScript for Automation the defacto over AS!)