Hiliux isn't the only one, Some Mercs, Porsche and Jeeps fail too (if you turn off the ESP / Traction AIds)
The European tested hilux, to be fair, doesn't have the ESP / TC stuff, and apparently the ones which do won't permit a vehicle to roll like that (i.e the Aussie variant)
But as others have said, hilux has always been nicknamed Rollux for a reason.
Btw, I drive one, but my ego, girth and confidence aren't threatened by what vehicle I'm in.
Swerve tests aside, as others touch on ... I've always been taught, in Australia anyway, to hit animals head on ... better off smashing the front end, then power sliding on gravel at 100 clicks and ending up into a more solid tree (or power-rolling after careening into the drainage ditches).
Baffles me that toyota don't just use a wider offset rim from factory, the SR5 flares certainly have a lot of room for that.
THen again toyota do a lot of stuff that makes you scratch your head. Infact, so do most car makers.