G.L. Pease loaded with PG?!

Hi guys,
Been reading the forum occasionally, had to sign up today to get some advice. The story may be a bit on the long side, but bare with me, please.
I had full intentions of adding a few GL Pease blends in my next tobacco order, so I went down to the cellar to see what I have on hand, just to make sure I don't order anything I already have. I donned on me that I have had a couple of GLPease tins opened for a few years - was going to revisit them, but never got around it, so I proceed to just throw them away. I opened the lids, just out of curiosity, to see how dry they've gotten - well, no sir, the tobacco is as wet as the day I got it!!!
Tobacco in the original opened tin, covered just by the plastic lid, for more than 2 years and I can still roll the darn thing in a ball and have my fingers sticky!?!
The two tins in question are Quiet Nights and Meridian. On the bottom of the can there is a retail sticker showing that it was stocked by the store on June 15th 2011, although I purchased and opened them sometime late 2011 or early 2012, I know it was winter and I haven't smoked GL Pease since trying those two blends.
Is it common for GL Pease blends to be loaded so heavily with PG? Anyone with similar experience? I though that Greg was supposed to be making artisan stuff... Weird?
P.S.

Smoked some of the Quiet Nights today, made my pipe gurgle. I may post some pics if I get around it, the tobacco has actually aged a bit, lol.

Haha, yeah, I don't ever rehydrate tobacco, if it's bone dry - it gets thrown. BUT, I almost never let tobacco dry, have 5 shelves with mason jars to prove it I had no doubt that the Pease will be dry as hay, alas...
The GLPease in question was part of a large and varietal order, so it got left open with a few other cans, but I never got back to the Pease; firstly because I wasn't all that impressed, and later, because I thought it must have dried out, so I just kept the tins more as a reference (and laziness).
I just find it questionable that he has a few articles on his website speaking against overly PGed tobacco, yet his keeps for over 2 years with just a plastic lid on top, lol.

Phonomet - Great! I would love to hear from him.

What's even better is that I can get answers right away in a post, rather than having to wait a month for the column and hope that my question will be the one picked (doubtful).
Fadingdaylight - I hear you. I am well aware that PG is in probably every tobacco and only god knows what goes into the cheaper aromatic blends. But I had NEVER seen or even heard before of a tobacco staying moist for over 2 years. You have to admit - that's not "just a little PG"...And since pipe tobacco blenders are not required to disclose anything that goes in their blend, it's all word-of-mouth we get to depend on. There are other humectants besides PG, too.
It would be awesome if Greg can find the time and explain how his tobacco can stay moist for years. At this point I am just curious if it's PG or something else.

The temp rarely exceeds 65F and humidity is very low most of the time in the 40s - it's in my finished basement, i.e. HVAC ducts keeping the humidity low, but because it's a full basement, it stays cool even in the winter with the heat running. I initially kept my large cigar humidor there, but had to move it, because keeping up with the dry air was becoming too much of a chore.

I agree with Darwin. Sounds to me like you just got lucky with your caps not letting in air or moisture out. That is their intended job and most times, they fall short. None the less, a bit of humidity making them suction down well, could easily have provided a good seal.

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That could very well be the case. A bit amazing, but not really impossible.
Anyhow, it appears that my experience is rather solitary, lol, you guys watch all your baccy like hawks

Pease blends will normally dry quite rapidly once a tin has been opened as he does not add anything to his blends that will keep them artificially moist.

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You couldn't be more wrong, but thanks anyways.