Lol... difficulty is not the same, 100k vs 300 k. Hashrate is about 8-9 TH vs 24. FPGAs were not the target, more the asics were and you can clearly see the difference.

Difference in payout from mining is huge for a gpu rig now vs before.

Only issue i see is that people went with their hash on f2pool for the most of it 30-40% almost and that could raise some risks if it goes over 50.