2048 has a finite board and an “ending”. 131072 is the biggest block you can get (assuming you’re playing a version that occasionally spawns a 4 instead of 2), after that you can still fill up the board with descending pieces but you won’t have enough space to upgrade them all.
Also it’s only a viable solution as long as there are countries that don’t have age verification laws. 10 years from now there’s going to be a very busy VPN endpoint somewhere in Antarctica.
It’s a bandaid fix that doesn’t address the actual problem.