Possibly. But this isn't how ARGs are generally ran. So... don't pay anything. Let it fall on it's face.
These people have been entertaining us for free and owe us nothing. In fact, they're giving away a lengthy section of their FMV game to you at no cost. I don't get this whole "we were betrayed" attitude people are copping, coming off like a bunch of snarky, self-entitled drama queens. it's almost become the default reaction to anything unexpected anymore; it's beyond passé.
Who made the rules about how ARGs are supposed to be run? Advertisers? Let me go cry in the corner because someone took the ARG model and did something they weren't supposed to with it. Were people this upset about This is My Milwaukee? Come on now. Also, let's not pretend like we were all planning on participating in a "real" ARG scavenger hunt - you weren't going to do shit and you know it. TiMM had about a half dozen people at its conclusion, quite less than those who had been playing along online.
Instead of that, we've been given an interactive online ARG in the form of a 90's FMV, presented from within it's own alternate reality. Yeah, It costs money to continue, but you can easily find someone to gift it to you since that gives them a "Senator" ranking in the game. The fact that people are acting so insulted about being asked to help pay for actors and artists all the sudden is hilarious - go cry me a river.
As far as expecting something and not getting the exact thing you wanted goes... well, whose fault is that and how big of a deal is it, really? Is shitting all over an independent game that you didn't play supposed to prove something? It's like saying "don't ever try to make something new because I only accept exactly what I expect."