It basically ended up with him dismissing Construct 2 as a learning tool or a fast prototyping tool at best.
I reckon this is the troublesome part. You'd think people involved in the technology industry would be more supportive and interested in new ways to do things. This to me is like someone in a horse and cart dismissing the idea of an auto-mobile, because it's not what they're used to.
Sure you can't do everything you like (right now), but you can do so much more in the time vs. content created equation. Even if you don't directly benefit greatly from not using code, it enables whole new teams to be formed - all of a sudden you could have 4 people bashing away with you who would have otherwise never lifted a finger, and you're all doing it faster than with code. It just opens up so many more styles of development.
So really, I think that coding and programming are two very different things. They both take logic, but only one takes learning. I know half a dozen people who have been through the platformer or shooter tutorials just for fun, yet don't know anyone who has learnt to code a game from scratch in a few hours for laughs.
And while of course you need programming somewhere to make games happen, it doesn't mean everyone involved needs to know it. That's like saying everyone should know to mill flower before baking a cake. They are two different jobs and more can get done if people specialise in their own role.