The reason for suggesting a wager is actually to help you to integrate your internal beliefs with reality (the real world).
Anyone can speculate. For every sentence in the Roadmap, you can just deny it and make some suggestion to support your presumption. I could speculate that the true end goal of R+ is to trick perpetual users into buying every upgrade in fear each version could be the last before we're all forced to subscribe until our last dying breath and then find silly ways to confirm that belief by distorting and twisting as many statements as I can as well.
It's cheap as hell to invent conspiracy theories and catastrophise without a sound basis.
When there's a consequence (even if it's just bragging rights, or winning a dollar), your brain responds to it with a very different neural pathway. It ties its ideation process to a more solid and consistent model of the world that responds to feedback that challenges its assumptions and calculations.
This is also why conspiracy theories are draining. 99% of the time they are wrong, and are worse than guessing, so they're just time wasters.
So no, it had nothing to do with competition. You thought that's what I was motivated by, but now you have been informed (by an authority on what I think and motivates me) that your presumption was incorrect.
Writing like this (below) really is not helping you. I could also speculate about you too and accuse you of writing as you do for attention or call you names and accuse you of silly things as you have just done, but that's not productive at all. Don't you think?