I don't think this is all that surprising to anyone. The "pilot waves" in the oil bath aren't superluminal, so of course they don't correspond with perfectly QM pilot waves, ie. they will only correspond in scenarios where the non-locality doesn't matter.

Edit: the article actually agrees with this, so it's hyperbolic all the way through except this critical passage:

> In a quantum reality driven by local interactions between a particle and a pilot wave, you lose the necessary symmetry to produce double-slit interference and other nonlocal quantum phenomena. An ethereal, nonlocal wave function is needed that can travel unimpeded on both sides of any wall.