My common experience has been that apologists for an old earth have been very dogmatic about insisting that decay rates are an unalterable constant. The big story here is the insecurity they feel (as reflected in this overbearing, pompous storyline) having that exposed as another ignorant and incorrect assumption. Creationists aren't making the mistake of claiming this neutrino evidence, itself, solves things in their favor. Our arguments are already out there and this article fails to address them. So who is really presenting a strawman?
So it has no bearing on the old Earth argument.
Meanwhile, this very article shows the experimental results have yet to be duplicated. You know, the scientific method that the creationist movement fails to adhere to. And once again, the decay rates of U-238 would have to shift by 99.9999 percent to support a young Earth model, which is the height of absurdity. As are the arguments you link to.