I bought a base sheet redemption card from eBay. It took Topps a couple of months before they sent it, but I eventually got it.
It saddens me to think that Topps might be printing more sheets to give away as redemptions. What other reason could there be for them to be out of stock? If it's true, then they haven't learned their lesson of printing so many baseball cards back in the early 90s that they devalued their sets and lost their market share that had been so strong for so long. They should produce only what they say they are going to produce, and if some of them are reserved for uncut sheets, then they should pull those cards out of circulation.
I also wish that they would offer uncut sheets to whomever would like to get one. Similar to what they did with Old School 1 (and 2?).