As a native English speaker, I don't see it as condescending either. Yes it's a bit "corporate" in tone, but that is not uncommon at all in large human organisations (not just for-profit corporations but also government, NGOs, political orgs, etc). Also the reality is that "hopping on a call" can often help to resolve problems that would otherwise devolve into months of bikeshedding on mailing lists. Which is often entertaining but rarely very useful.
But it's Mozilla. There is a segment of the community that will be pissed off by everything they do. Check the username of the person you're replying to.
But it's Mozilla. There is a segment of the community that will be pissed off by everything they do. Check the username of the person you're replying to.