I am English and the phrasing used is a backhanded way to tell you to shut-up and go away. I've seen it used by both native and non-native speakers in this manner.

It is about 50/50 though as many people don't seem to pick up on backhanded way that many English people speak.

> 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.

This is also sometimes done to shut you up as well.