This is exactly what I said in my post. The GB is a bit too good now, so you're of course thinking it's perfectly fine even though it's actually not. Even the first strike ability, looking at the numbers currently on the wiki, looks like it's going to reach a 100% occurrence around the mid-50s. Compared to all other %-based GBs that slowly climb to 100%, this is something that's completely unprecedented as none of them even come close even at much higher levels. Orangery, Seed Vault, ToR, even Atlantis all stay very far away from 100% and those effects are rather less impactful than what this GB provides and it's also smaller than all of them. The FP production just puts it over the top.
I'm not saying it isn't nice, I'm saying it's TOO nice compared to what else is in the game. The numbers were underwhelming before, now it's been swung too far in the other direction. Players may feel better about it, but objectively speaking it's just as unbalanced now as it was when it was first released. That, or now most other GBs are unbalanced ans should be readjusted to reach the Kraken's level of effect.