Cross Account Pay

Since we have a unified account for Riot Games products should we have RP exist in a more fluid state? Where RP could be used either in the League of Legends shop or in the Legends of Runeterra shop regardless of where it was purchased or how it was obtained.

I want to ask people about this because a lot of large game companies have worked there premium currency on this model and would allow people to have more power over what happens to there money after it is paid in.

So I actually want to have a discussion about this. I see that the challenge would be levelling the difference in cost between a Riot Point and a Riot Coin but they can set the cost rather simply. I even want to know if you think it is a good or bad idea and if you can provide a reason why; even better.