New interportal.

What does "harmfulness" have to do with it? The main idea is a 50/50 game, and I'm just insisting on adhering to that.

Well, it's good that it's not about harm.
The main idea is INTERPORTAL.
50/50 is too primitive an approach.

If you think that the difficulties are only on your side, then you are greatly mistaken. I expect some trouble from the League and WCL.

Well, then we need to consider options for solving these problems, although it's obvious that the problem with the SoD needs to be solved.
Everyone knows how to play SoD, and there's no point in arguing about it; the real issue is the templates.
That's where I suggest adhering to the 50/50 principle.

P.S. Let's just be honest to the end. When scorp writes about his game on SoD and the possibility of playing TE, that's a real problem, but in your case, it can't be called anything but a whim.
In the end, we need to rely on specific participants, namely the roster. I suggest that each coordinator write down a potential roster of participants, and there's no need to base it on the fact that the roster will depend on the regulations. Write down absolutely everyone who wants to participate, and if someone has specific conditions under which they can/want to participate, it is desirable to indicate this. The issue will be resolved much more easily and, most importantly, more productively... I think no one would be against adjusting the number of participants to the maximum, even if it's not a constant number from match to match?