I used Blender to edit videos back around 2010. Even then it was amazingly simple once you got the basic concepts down. Like 'g' to grab/move a video clip, simple things like that.

While rendering those videos I remember just being dumbstruck at how much you could really accomplish in Blender. You didn't really need much more even to be a professional video editor.

The trade-off that never seems to go away, though, with any software, is that in order to avoid all "bugs" [in common parlance, just things the software won't let you do], you need to know a tiny bit about video and audio codecs, the basics of how compression works, frame rates, and what kind of file at which dimensions your customer / delivery target needs. This eliminates like 99% of the quality problems that people will report with their exported videos: Doesn't play in my client's video software, etc.