At those pressures, it's not particularly unreasonable for their to be flex and shift in materials. That would be baked into design, maintenance, and monitoring

At those pressures, it's not particularly unreasonable for their to be flex and shift in materials. That would be baked into design, maintenance, and monitoring. However, the lack of safety culture, testing, or modeling is more red flags than a communist rally. More succinctly: It's probably "normal", but OceanGate didn't know if it was "normal".