As to why they're against them, I don't know their reason, but there used to be only one size of tote. There there was big and small. And then, for some fxcking reason, they decided to make ones that were roughly as big as the big ones. Just enough that you have to take half a second to re-eyeball-ruler measure them. But in isolation, if you've got one in front of you, you can't know if it'll tetris properly with another one until they're side-by-side and it turns out they're not.

Dumbest decision ever.

At least they come in transparent now though

The clear plastic is usually a bit thicker, and more rubberized — it'll still break, but more difficultly.