[mothered]

Interesting.
I get deliveries from Canada Post quite often. I'd say a good 10/week. I haven't seen this just yet, but I will be on the lookout!
This could be a problem.

They'd be predominantly focusing on whether the tape Is still Intact, namely the top & bottom of the box and oblivious to Its condition elsewhere.

As such, If you're boxing a small Item, carefully slice one corner of the box (where It folds In Its collapsed form), take the Item out and glue It back- not to be noticed at the collection point, yet significant enough to show that It's been tampered with when received by the company.