Ah, but that's not a GNB-unique situation and other tanks did not get second charges on their 30s-ish CDs to compensate. I still don't quite know what the point of that change to GNB was, tbh. It's just one more component of feeling like a melee-range class removed, since as you say, now even not being in melee range (which should be 100% the death knell for everything you can do, being a melee range job) is less punishing than you'd expect it to be since your GF-CD can keep cycling happily on the second charge.

If GF at least stacked shields like the PvP version, I could kinda see the point I'll admit...