Dove Cameron was suffering from a back injury during the run of “Clueless,” which has been discussed here. Your tone seems to imply she was calling out for trivial reasons, so I feel it’s necessary to chime in here. Yes, she missed quite a few performances, and that is disappointing, but she was very transparent with her fans about the reason on social media.
She was not calling out for vocal problems, vacations, red carpets, etc. She had an injury and took the necessary time to heal so she could sustain a future performing career. We may not be seeing her in “Piazza” (or anything else) right now if she had continued to push through an injury to perform an 8 show week in “Clueless.”