Prior to the guaranteed deals, it definitely wasn't P2W except to the whaliest of whales, and even then, the rates are too horrible to even consider the minimal advantage to be worth it. Unless you're waterfk and you literally give no shits about your wallet.

Ask anyone else who whaled on FGs in the first few months, myself included, and they'd tell you the same thing. To even consider FKG to be a P2W game along the lines of any other gacha game is insanity. The entire reason for FKG being as popular as it is on both Nutaku/DMM is because it ISN'T P2W.