Why would anyone update their review on a whiskey if it hasn't been changed and, more importantly, why would a producer send a reviewer a second bottle of anything that's already received a favorable review? So the reviewer can change his mind? Better turn on the old 'is it reasonable' filter, EP.
However, here's the rub - EW1B is essentially the same thing every year with just a new date tacked on. There's no claim of changing the mashbill or age or anything (except weather and storage location, perhaps). So, maybe in this particular case, a favorable review might keep the bottles coming, year in, year out. [Hmm... just working to find a reason for higher scores here - it ain't easy!]