Written documentation is fine, but a quick video would help. That's not unreasonable for something like this, you could have replied more nicely. Instead of like a terrorist.
I need a reason to evaluate your software. There are hundreds of frameworks. If I start evaluating every single one of them, I will spend the rest of my life doing just that.
I didn't think he was. I think it was stylistic hyperbole; deliberate heavy-handed response, just I pulled out the "webinar" gun to label someone a "suit" :-)