It can also be said that in a Jebus Cross tournament, preference is given to those who prefer and play Jebus Cross a lot.
You can say whatever you want. But including a template that is already on the list a second time, thereby doubling the probability of it being selected, is at least strange.
And the example you provided here is, imho, completely inappropriate. If it were about a fixed list of templates, be it one template or 3-5 templates, then there would be no questions.
As for solving the problem with an even number of templates, many solutions can be proposed.