She’s got a point
Mom: “So, you just paid for a flight. And a hotel room. And you’re going to be working at least part of the time, after scrambling to try to get ahead before you even go so that nobody can screw things up while you’re gone. Then you come back to all the stuff you weren’t able to get to. After never getting out of your room that is basically your office for the weekend, right? So tell me HOW is that a vacation?”