Your decision has no mitigation at all though. For example, the 78th completed the first Two seasons, but were unable to complete the 3rd season as we had internal and real life issues. So the fact we had 2 active seasons seem to count for nothing. 1 season where we had to leave early, we don't get chosen, seems to be a bit unfair.
Also, with the amount of regiments that are interested, I really don't get why there isn't a League 3, you did it for the last Two seasons. Without it you create unnecessary friction.
From your list, that's 12 Regiments your not letting in, I think it would be different if it was 1 or 2, but not letting 12 teams in.. I think its bad for the community.
9th
44th
59th
4e
3rd
VL
24e
19e
2pp
Preobraz_LG
78th
8th_MGR