Alright, clear answer, thank you.
I actually wanted to implicitly also (mainly) refer to the clans that themselves may end up in a higher division, I assume I did not make that clear. For them, the impact is quite large.
I do think you overlook some complexity though:
1) It rarely happens, if ever.
Stats did it, in the qualifiers in their first season in the league, in the form of substitutions after the qualifiers were drawn. (CL9)
It was a brilliant move that ended up paying off massively when they promoted that season.
Full story: that season, there were 3 qualifiers, the top 2 of each qualifier was gathered in C. One qualifier, including Stats, Apprentice and 101st was a lot stronger than the others however. Stats reacted by immediately adding a slot for their stronger players in the Q (at the cost of a slot in C), and finished 2nd in their qualifier with less than a single game difference between them and the 3rd team. An average showing in C was enough to promote thanks to dropouts from B the next season.
Similarly, a clan could motivate its better players to play more slots when
they are in a higher division (has certainly been the case for Stats before), or in fact recruit better players when they are in a higher division. I actually did get the question "In which division will you play" several times when recruiting players. (Bad, but relevant example: Nauz in CL11) And it happened to us twice already that we promoted due to dropouts (CL9->CL10 & CL10->CL11, it won't happen this season) So I respectfully disagree that it wouldn't matter, because I do know for a fact that it does matter quite a lot.
And since you have an account in Stats yourself, you are effectively in a clan for which it matters as well. ;-)
