Maybe, as i said, i do not look deep in the dependency graph, since it is unnecessary complicated for this small model.
No, that is not the case here. The refercences are here, but they are bad. And if they were good, it does not help on the modeling (geometry) errors you practice with your flub.
Only in your imagination. No one said, you must here perfect from the start. Everyone have to start and to learn. But you seem to be education resistant.
If you mean expensive price of commercial CADs, it depends. If you mean your way of model, clearly absolutely (and many superlatives more) no.
But what, i do not bother with you more, makes no sense.