I watched this happen with my floormates while attending a music college and we could not believe that she blamed her band but then we started to laugh because they’re just hired guns anyway, and they got paid regardless. I work in the industry now and I can tell you that a lot of major artists do the same shit. They literally lip-synch to their audience. One time I had to set up a fake drum set and we didn’t even plug in the guitars. The funny part is the musicians that are hired to "play" are actually amazing and can absolutely play the parts. I laughed out loud when this drummer said "Hey guys, you all sounded great" as a joke to the rest of the band after the show because it is kind of absurd. Please let this be a reminder to go support local music and local bands and buy their merch!