I'm not sure if this is a good idea, and maybe it's too late anyway, but maybe the sugar lumps and minigames should begin by purchasing a cheap heavenly upgrade, rather than by ascending once.
This is more similar to how the other late game additions work, such as the dragon and the seasons.
There wouldn't be an incentive to ascend way too early to start using the minigames. Right now there's an argument to be made for ascending at one trillion cookies, which really breaks the flow of the game since the bingo center costs one quadrillion.
It might be a bit less confusing to have each new game element introduced separately. Ascend and buy Legacy to unlock the prestige system, buy How to bake your dragon to unlock the dragon, buy Season switcher to unlock the seasons, and buy another heavenly upgrade to unlock the sugar lumps system.
It currently doesn't work that way, and everyone who already has a bunch of sugar lumps wouldn't want to lose them because they didn't buy an upgrade that didn't exist. There would have to be a way to keep existing progress if this change is made.
It might take a bit longer to start collecting sugar lumps.
This was probably considered and decided against already, so there's probably a reason not to do it.