"At nearly $100 a bottle, this immediately jumps to the top end of the bourbon price range, and having tried it, I would suggest that it is mainly for collectors, especially given its very limited production."
and...." If you want to add a bottle to your bar that few of your friends will have ever seen, the Single Barrel will do the job"
He is just stating his preference for the regular 4RSB over the more expensive limited release.
I guess we all read and interpret things a little differently.
I don't think he's talking about the standard single barrel. He doesn't mention that bottling anywhere in the article - just the 1B LE and the standard Small Batch. His conclusion is "buy Single Barrel LE to show off, buy standard Small Batch to drink."