He probably doesn't have a range for shoving for value. From his perspective, he's looking at the hand exploitatively and thinking “if he never has Qx here he folds 100% of the time, I should shove”. Of course it's super exploitable to never have a value range in that spot but he's banking on Larrabé not to realise that's the case – it's an incredibly tough spot to be in, having to try to call it off on the river with an 8 there at the Main Event FT, and he figured Larrabé would fold his entire range. Van Hoof's play is made to exploit the fact that he expected Larrabé not to be capable of exploiting the fact that Van Hoof never has better than an 8 there.