He's a marketing manager who responds with an argumentative tone to someone pointing out he is a marketing manager. There's a thing you don't see every day.
Argumentative tone? I didn't read that. Couple that with the fact that he might not be a native English speaker, I think it's a bit much to imply a tone.
An argument against the article was specifically solicited, even though it was orthogonal to the OP's point. That's not an implication, it's a statement. I'm not sure how else to read such a thing, frankly, native speaker or otherwise.
Edit: and not that I'm telling the jetbrains folks how to do their job, but a marketing manager who has communication difficulties in a given language generally isn't given the responsibility to make public company statements in that language.
Basically your objections aren't holding much water.
