"I'm trying to do what the sixes community has never done. Try to evolve our comp tf2 format to try and find the best one, one that sees all class viability and fast pace/dynamic game play
This is the part that angers people, because 6s players are content that has already been accomplished, myself included. You are adamant that you should be leading a revolution to change and improve TF2 by disregarding core fundamentals that we as a community playtested long ago, and are still changing to this day.
But even that alone would have been fine. The problem is that you have forced your idea to the forefront by offering substantial prize pools. It's a complete show of ignorance and ill-respect to what the majority has worked on the last 10 years. 10 years man. If you really wanted to support TF2's comp scene, you would be putting money towards 6s itself, even if you don't agree with it. It has prize pools and consistent LAN tournaments which I found fucking exhilarating to watch on stage. Instead it seems like you deem all of that not good enough, and wish to see your own vision for the game flourish instead. I strongly believe your gamemode existing is in direct opposition to 6s.
In the end we can't tell you what to do with your money, but nobody wants to give you feedback on how to improve your idea because it's YOUR idea. None of us have an existential problem with 6s that is somehow being solved by your vision.
There is no evidence that your league isn't being abused for the money. I have seen nobody scrimming your format. Teams show up to play and that's it. People say it's a Froyo paycheck for a reason.
If you really believed in your idea, you should have kept it completely free. In fact you still could. Keep it free for a couple seasons with no prize pools. You'd get much less flak from the 6s community, real feedback as to whether people would take time out their evenings/comp schedule/whatever to play it, and whether it truly does have any merit.
I'd continue to play 6s for free as long as I still enjoy it, and I'd pay out my pocket to go play at LAN for potentially nothing, same way the Australians did. That love and care has been crafted through 10 years of hard work from insane members in this community. What you're trying to emulate is just not possible this late down the line. For those reasons, what you're doing seems both arrogant and self-serving.