Those numbers are made up sure, but they're meant to demonstrate that a 26k valuation of 45% of your company after 10+ years in business means you effectively believe your company will never be able to support more than one employee (presumably the founder themselves), by contrasting with how modest even a 100k valuation means you think the future of the company will be. It's fine to believe Elementary OS will live on in perpetuity as a single person free lance project, but is a pretty stark contrast with where I think Elementary OS wants to go and means that one of the co-founders presumably should come out and say Elementary OS will never be a company, but rather a one-person free lance project.
And I can easily understand how that would rub the other cofounder the wrong way ("Oh so you believe that Elementary OS will eventually be able to hire a team down the road but you're offering me a price that indicates the opposite, even after accounting for uncertainty? Sounds like you're intentionally low-balling me here after 10 years of hard work together.") Of course from the other co-founder's point of view 70k of debt hanging over one's head is not a fun prospect either. But nothing at first glance here, without additional details, jumps out as me as brazenly unreasonable from either side.
