I think personally its going to take awhile before we begin to see p2e especially crypto related been onboarded to mainstream games because most of these top companies are regulated and works under-laws that need to have guidelines for nfts and in-game currencies and if possible there are lite or no rules regarding them I think some games will have p2e while some will remain where they are.. Most company will be stubborn to make change since their current system is making them returns
I agree with you, for a really reliable game, many rules must be created to avoid the scams that are happening every day in NFT games, although a well-known P2E game can give good results, it is likely that your devs are thinking about how can they maintain a healthy economy, without oracles and taking into account that it does not become a possible bubble or ponzi scheme that does not define anything but kills the project or game, if these things are taken into account I think any could be very successful P2E-based NFT game and be successful.