This is essentially an argument to include functionality currently available in various extensions to the native SketchUp code. There are many threads here on the forum discussing the pro and cons, the complications and difficulties of this idea. It’s been an ongoing conversation for many years. I think I summarize the gist as: It’s a welcome idea but the devil is in the details. There is a wide ranging set of opinions on which extensions and functionality should be incorporated, what’s important, what’s superfluous, some are concerned that the coding effort to include more advanced functions will significantly raise the subscription price, others are concerned about the UI becoming over complicated. A quick search will reveal many threads of similar kinds of discussions. Here are some recent relevant things.