URF mode to unlock permanently (Buy to play)

Hello there, overall sorry for my english as I am not native, I'll try my best.

Well, we all know how stressfull can be a ranked journey of LoL with lots of int, and so on and sometimes, we wants to chill without pressure. I wish there is a permanent URF mode in the game (URF, not ARURF, is not fun to fill a random champion by my point of view).

So, I had the idea for those who might be interested, why not adding on the shop, URF mode unlocked permanently in the account for those who buy it, and then can queue with others that bought the mode in store anytime ? Then, those that are interested can buy the mode and have fun at anytime, Riot get for his money (probably more worth than TFT) and Riot can still puts ARURF (not funny) twice a year like they do as free for all like currently.

If you Rioters adds a permanent URF (not ARURF) mode on "Buy-To-Play" in the shop i'll be the first to buy this and probably not the only one. Regards.