In at least 2 of those scenarios, SS with LV and Mead with Yutan/Wahoo, you have a D2 school with a big C2 or a C1 school. You watch if and when these coops do happen in the future. The class D school will completely lose their identity. No more school colors, no more games in their towns, where's the need for a dance team or a pep band. Kiss the booster club goodbye. Bye bye school pride, and eventually bye bye school and community. On top of that, many kids won't go out the first few years anyways just because they don't want to play for another school.
Let's take it one step further. If any of those coops were to happen, that would very likely bump them to C1, which we all know is extremely tough in Northeast Nebraska. Now you get to play Norfolk Catholic, Aquinas, Neumann, Wahoo, Scotus, Pierce, etc., etc. week after week. Great, you have enough kids to field a team and as a reward, you get to go out and get your butts kicked week in and week out.
There are definitely reasons to need to coop, but it is not an end all cure all answer.