Not only do you need 14 teams to create a league, but Nordeus needs 8 leagues at every level on every server to generate the following seasons champions league and super cup. This means 112 teams at every level in every server. If at level 1 on any given server more than 112 new accounts in a month are started then a further 8 leagues have to be created.
Also bearing in mind the need for Nordeus to keep apart successful/ active/spending managers at lower levels I would imagine Nordeus probably has 32 leagues at level 1 every season.
However I think the reverse of this applies at the highest levels. Where there are only a handful of active managers at a level on a server it would make sense for Nordeus to reduce the number of leagues being played. Why waste time, effort and space running leagues full of bots just to generate the following seasons CL and SL? And this is why high level players end up facing plus 3 level teams.
I can see why the suggestion was made to skip leagues. It would help fill up the higher levels with active teams. But I really don't think Nordeus has much interest in retaining managers after a couple of years. Bored? Start a new team.