I'm pretty sure they DID. I think they mentioned that in their thread, somebody asked them if they were getting the LT, and they had to go check, and then a short while later, it was added to the POPO.
At this point though I think Sideshow's in the mode of "we need to make this right" and just give everybody the LT. If you're in the US, and you order from a company in the US, you get the LT. I can't imagine where BBTS is getting their stock from if not Sideshow, who else distributes Hot Toys?? Even if they got their stock from Hot Toys direct, BBTS is STILL in the US, so why would they not get the LT??
Sideshow isn't going to just up and give anyone the scope, this all comes from HT, however many pieces and whatever conditions they dictate to Sideshow, that's how it's going to be.
HT should just life the exclusivity and make it standard, if they're going to toy around with declaring an exclusive like this, they need to make the terms clear up front before allowing distributors to presell.