This is worth a watch if you fish with sufix 131 the tests are on Australian 10lb 131 which is the same diameter as UK and European 28lb sufix 131 this is why it can be a headache with braid diameters with such variation
I take these with a pinch of salt but do agree 131 breaks well above its rating like most other braids.
What I find very odd about this Australian video testing of yours? is that everything the guy does is in lbs, where here we work in kg. Also the 131 I buy has different labelling to what he has as you can see here from 131 from large stores which have franchise stores all over the country.
Testing by "Fishing Monthly" magazine had far different results to what you have posted as you can see here while testing 20lb 131. I use the 131 20lb knowing I have a little extra in reserve, which is around 7lb. I have no issues using 131 for any kind of lure fishing, the lure design and speed I work them dictates the depth with mine. Ive yet to have to replace any 131 which Ive been using well over 2yrs now.
You can watch the entire video if bored but the findings are pretty much thicker braid is stronger than thinner braid.