Just because you don't necessarily have a solid counterargument to his convictions, doesn't make anything he said "over the top." That's just a disingenuous dismissive attitude towards what is clearly a post on his personal website that builds on established and clearly communicated values (freedom of software.)

There's absolutely nothing in that article that criticises making and sharing free software. It is clearly criticising using a certain type of medium to share free software. If that's zealotry, then any argument against doing anything is, too.

I wager that this hostility felt by these views are projections of guilt, devoid of criticisms towards said views or values. In fact, I'd argue that having no opposition towards a certain ethos then opposing it for frivolous reasons such as personal offence out of a public blog post is as close to hypocrisy as one can get.