I feel like if you wanted a no-modes blender you'd need to split it up into 5 or 6 separate programs. There's the vertex modeling aspect, the camera and object tracking aspect, the video editor aspect, the sculpting aspect, and probably a half dozen more things I'm forgetting.
Blender is an absolute massive collection of interrelated functionality. It's mental that they managed to make it all work so well.
Blender is an absolute massive collection of interrelated functionality. It's mental that they managed to make it all work so well.