[Balgair]

No. Depending on the failure mode, maybe, but that is not the concern here.

A slow leak that the high-vac pumps cannot deal with is a slow deceleration.

A massive crack will cause quite the stir in the tube. Think of a balloon. When you inflate a balloon you put, maybe, 1.1 atms more into it. This is about 1/10th that of the hyperloop system. You know how loud even a simple party balloon can be, and the forces that you deal with.

[kbenson]

Hyperloop is based on a reduced air pressure tube, not an evacuated tube. Additionally, there's inlets in the front of the capsules to actively move air/pressure from in front to underneath/behind.

I don't really know how that alters what you've stated, if at all, but it didn't seem to be addressed, so I figured I would throw it out there.

[Gibbon1]

The Wikipedia mentions 1 milibar (1/1000 of atm). From a structural standpoint that's a complete vacuum.