@GrandTickler87 You have a whole damn year to log in ONCE to get a single stargem which you can get within a reasonable 10 minutes.
IF you are going to return to the game, you most likely will have it installed at some point.
If you didn't log in within a year, that is completely on you and it is fair to assume that you weren't going to spend those gems anyways as you would have logged in to prevent them from being destroyed OR spent them already.
This whole argument is mind bogglingly stupid as it is a very reasonable expectation for a player to log in ONCE to make sure their item does not vanish.
An incentive if you will to keep playing even if for only an hour or less.
Same things happen in FFXIV, WoW, Destiny, Maplestory, Perfect World, Shaia online and thousands more.
Paid items do expire every now and then if you don't collect them on time, don't use them, or they got removed from teh game for reason.