Plus there is the dumb name. Why would they call them Sys3 when that is already the name of one of the sizes of Tloc?
No, the old sizes were Systainer EYE, EYE EYE, EYE EYE EYE, EYE VEE, VEE, and VEE EYE. Pronouncing them any other way would be silly.
So be fair, they should have called them. Systainer, Systainer 2, and now Systainer 3. And then had the sizes be 1,2,3 or their heights in mm. Calling systainer 2 "t-lock" was a mistake.
Calling them systainer 3 is one of the few things I think they got right. But really they should have done. Systainer B or 3B (for Bott), made the special changes for that stuff, while making a Systainer 3 that got hinge/structure type changes, but kept the heights, side labels, no dumb handle.