Explain to me how seventeen doesn't have ships with other idols compared to other groups

i follow multiple groups (carat myself) but i feel like seventeen is one of the very few groups that don't have any rumors or any ships with other groups even though they are friends with literally everybody. i don't quite understand how that's possible when usually that's not the case. what is it about svt that keeps the shipping away or am i just not seeing any of the ships. i think it's really interesting that they can be openly friends with everybody (and that's the way it should be) but i'm just trying to understand industry dynamics if there is any because svt is a very popular group.