This is what did it for me, given I knew I'd be traveling for the holidays. I do know that only affects a certain section of players but that was the nail in the coffin for me on Ugir. 

ok thats fair. If one cant log in and play daily, then this format of fusion kinda sucks. But i was referring to all players who end up playing everyday anyways but decided to skip, being scared of the lack of flexibility, in which case i maintain that the fusion structure was not as heavy as it looked.

I will say though. even if i was able to complete it (only need half of FK and then 3rd AE), i'm not saying that 100-fragment fusions are something i want them to do again...