My main issues (and I presume some will be mitigated by upcoming strips) are:
1. It isn't funny. Someone's costume dissolving, their being a bit uncomfy is funny in the classic "It is funny if it happens to someone else sort of way), especially if she rallied and started telling jokes about it. Talking about conditions, being sabotaged, and a tale of her background might get shock, pity, horror, sympathy, but it isn't setting the mood to be sidesplitting funny which is her goal. Why is she even having this monologue even if it is true? If she isn't affected she should have turned the event to benefit.
2. It is a let down, since others have pointed out there have been situations in the past where she either hadn't expected to interact with people outside her costume where the persona was consistent, and times where maintaining that persona was out and out dangerous, where here it would just be a bit awkward.
If she didn't want to risk the personal when people's health was in danger, why risk it now for a random impulse to have a show? And if you're going to, why engage a monologue that sets a very non-humor atmosphere. Comedy is about context and mood. That is why you have folk whose job it is to get the audience in the mood and receptive before main acts come on stage. She's a pro. Just seems pretty improbable that if her claim is true, she'd respond in this manner.