There is always uncertainty in science. That is its strength not weakness. creationists and many others do understand this.
I thought the same: "Oh, an unknown/hitherto unexplored variable - wait until the Creationists get a hold of this!"
For a few years now, I've seen creationists suggesting that radioactive decay used to be orders of magnitude faster.
Yep. Kind of like the electric universe people have been bucking the status quo as well and on the last comet rendez vous mission they were the only ones to correctly predict what would happen.
Can you link to someone who is not an electric universe partisan who says this?
Yep. Kind of like Gene Ray, who has been bucking the status quo ...