DragonFly with a 15 second rollback you could still lose that item - if it crashes on exit that 15 seconds may have happened just before you got your drop and won't for 14.9 seconds more - you leave after even 14 second and your item is gone - it hasn't happened yet I don't think for FFXIV, bigger bugs have caused bigger problems.

My point was, would the increased risk of say 30 seconds for more inventory based on the stats to date and the low risk really not be worth it? You will always get edge cases, but I think saying "we want to save everything every 15 seconds" is a piss poor excuse to limit inventory size.

And honestly - I'd stay in an stance for 1 minute after I got my item to ensure a save check had happened and take twice the inventory any day.