let's assume a user has 100 of these items left over from donating to the kickstarter; they'd end up with about 2.5b gold after selling them all.
that totally defeats the point of taking all that gold out of the system, once everyone is selling them back to the shop.
if you don't want to open them, and you don't want to sell them on the MP, go to the exchange forum and sell them in bulk to someone who wants them.
the items weren't as bad as people are making them out to be. additionally, i opened over 100 of them and had at least 2 of every item. the drop rates aren't totally awful but i did end up with approximately 10 of each flower item, and around 3-4 of most other things.
it would be nice of gaia to give a freebie bundle with the final 5 items they would have added had we reached the top tier, but i don't really think any form of compensation is needed since everything was resolved in the end, and didn't take that long at all.
additionally: all of the gates have had 'ultimate afterlife' style titles; elysium and nirvana are greek and buddhist. olympus fits logically in there, as if you prove yourself worthy of godhood you can live there.