Load Testing an InstaCrate

InstaCrates are folding storage crates. I bought a couple at Costco for around $9 each. While they do seem like they will be handy; I would be careful trusting their 50lb load rating, as demonstrated in this video.
These are made by Greenmade (US Merchants) here in the USA.
=== Timestamps ===
0:00 Introduction
0:37 20lb Test
1:12 30lb Test
1:39 50lb Test
2:54 Construction Details
3:38 Final Thoughts
4:07 Fetch