IMO, the topic of the Pi freezing and your shown process are not related.
Freezing the Pi probably means that it has crashed with a kernel panic or at least something very close to it.
Such severe errors are pretty much always due to:
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Defective hardware (including wonky connectors, cables) either within the Pi itself or connected to it via its interfaces
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Device firmwares that are connected to the RPi and are doing something really ugly and which is not properly handled on the Pi side
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Driving the device out of specification, e.g., over-clocking, too low/high power/voltage supply, too high temperatures, etc.
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Kernel or driver bugs
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An unfortunate combination of the points above (the linked issue to the USB capabilities seems to be such an issue and would have been a good candidate for an explanation)
Overall, it can be stated that it is not so easy to drive a device into this state, and indeed something more serious (or unfortunate) has happened.