A possible way to improve RGO spamming that's better than 2x costs?

I made a post on the PDX forums about this here if you care to see that too: https://forum.paradoxplaza.com/forum/threads/a-possible-fix-improvement-for-the-rgo-scaling-issue-and-2x-cost-change.1927655/

Basically, I think that the 2x RGO cost is too simple and shortsighted for what EU5 needs right now to offset it's eco scaling. It also entirely screws over nations like Serbia who start poor but require high value RGOs to scale up (It's silver and it's gold mines specifically).

Here are the the simple list of changes I recommend on the PDX post (I go into more detail on my reasoning there) and I'd love to hear anyone's feedback or anything they think could be added to help develop the idea:

• Limit RGO sizes to a base size of around 3 or 4 ish at game start for all RGOs, perhaps different for things like gold, silver and Saffron etc which might have lower ones.

• Make RGO sizes be increased / scale by advancements unlocked in institutions such as Renaissance and such. An example historically would be the heavy plow for agriculture, or three-crop rotation methods.

• Have RGO costs scale based on the number of levels an RGO has. E.g. as an arbritrary example, you could have silver go up by 50% cost per level: 60 - > 90 - > 135 - > 202.5. Far better than a flat 2x increase imo.

• Higher RGOs (And workshops?) require more pop to fill (Promotion speed can increase per age more and go alongside to match this)

• Add a system where not just expensive goods (as we have now) lowers demand, but also lack of supply. If supply drops suddenly, pops get angry. If it becomes the new norm, they get used to it.

Obviously these changes would require changes to the game not already in place too. But seeing the new dynamic demand system where pops stop demanding goods if the prices are too high made me realize there could be a lot more dynamism to this, and the devs clearly want to lean that way, or are at least testing ideas around it.

I go into a good bit more detail as to my reasoning for each of these points on the PDX post, I just didn't want to dump it all here due to Reddit's formatting (and people scrolling through more rapidly).