I've had service issues on Fly that I've escalated to support in the past, and given my experience it feels highly unlikely that they tried sweep this under the rug or somesuch.
At the time we had deployed a small business workload (few 100$/mo in billings) and paid for their $29 support plan, so grain of salt there. We faced service issues and, while the service reliability did eventually push us to migrate, support was top-notch the whole way through. Support was happy to escalate as needed to try to help get a solution, with MrKurt eventually joining in and helping identify root causes. During the entire episode everyone was realistic about where issues could be (i.e., were open to the possibility of it being a Fly issue). As people from Fly have noted, they've historically been quite open about when they weren't the best choice.
Again, while service reliability has been an issue (and Fly has admitted this in the past and is working on it), I think the assumption of badfaith in this thread is pretty unprofessional. It's also a lesson in how hesitant people are to pay for support. $29 for access to a human is not a bad deal; we certainly got good value out of it.