Erm, no, I understand that point. But we're not talking about comments made in a convention. We're talking about a private email from Feig to Pascal.
I can see where that'd change things slightly, but only slight.
While it's certainly true that, if he weren't interested, he could've said as much (again), once he's on board and the lawyers are drawing up the terms of whatever it is he'll sign to get his money, his box office points, and his producer or exec. producer credit or whathaveyou, he's probably not gonna say "By the way, this is a stupid idea and I'm still not that into it."
I could see where, down the road, a director and studio might have behind-the-scenes fallings out about "creative differences," but in this case, that's unlikely. He's on record -- publicly and privately -- as being excited about
this version of the film. Namely, the one that's entirely within his wheelhouse and where the studio has acceded to his vision.
When people here speak of Feig's lack of enthusiasm, they're talking about his lack of enthusiasm for doing a sequel in the old continuity. And that's well documented. Here's a direct quote from Feig himself:
I had been contacted several times about doing a sequel for Ghostbusters and I just kept turning it down because I didn’t know how to do it. The scripts had been written, but I couldn’t figure out how to do it. I wasn’t excited about it.
...
So finally, one day I was like, it’s a great franchise and it’s a great idea, if I was going to do it, how would I do it? And then I thought, if I could put four women in the lead roles, that’s exciting to me. That I know how to do, and I know how to make that funny. And there’s so many funny women I’ve been dying to work with. Obviously Melissa and Kristen are in it, but then Kate McKinnon and Leslie Jones, who are so funny. It just seemed like the way to do it.
...
Then I thought, I’d rather do it as a reboot so I’m not tied to the old movies. The old movies are so good, I didn’t want to mess with them. And I also want to see the beginnings of this group. I want to see people seeing ghosts for the first time, and how they’re going to fight them for the first time, how they develop their technology. So it just got very exciting to me. I just like working with funny women, and that’s all I really like to do with my career.
You can read those quotes -- and actually watch a video of him saying those exact words -- on the following page:
http://www.slashfilm.com/paul-feig-turned-down-ghostbusters-3/
Feig's interest level is all right there to see. He wasn't interested in the sequel and couldn't conceive of how to do what the studio was suggesting. He hit on the idea of doing...basically the only kind of movie he's interested in (casting primarily funny women), and then he got excited about it. He did a reboot because he didn't want to be tied to the continuity of the old stuff, because he wanted to have his characters react to ghosts as a new phenomenon rather than as old hat.
We can debate the wisdom of Sony hiring Feig and agreeing to his desire to do what he wanted to do, but at this point, hopefully this puts to rest the discussions of what he was and wasn't interested in doing.