Gravity is still going to be a thing. Even if it is a 'better' connector, the fact is that a top-loading system for cartridge-based consoles requires less maintenance and is far less prone to human/user error in insertion/removal.
And again as I said, why bother with the AVS when you can get a modded NES Top-Loader console for a similar/lower price?
Your itchio profile seemed empty, otherwise I would take what you said more seriously. If you had some kind of presence outside of the forums here that I could see, then I might know where you are coming from.