[nrmitchi]

I don't particularly mind it, mostly because as you mentioned, it is much easier, as long as the sender is aware that it doesn't always work; a Calendly link isn't the solution to every scheduling situation.

It also has to be sent with some sort of message/introduction, otherwise yes, it does feel like I'm being pushed aside.

Finally, the person sending the Calendly link has to keep their calendar actually up to date. There is nothing worse than setting an appointment through Calendly, and then being told "Oh sorry, I actually have a conflict".

I think the "rudeness" interpretation comes from an interpretation that the person sending it "doesn't care enough", which isn't always true.