I just think of Geirskogul as an "unloader". Imaging you have a bucket on a scale and there's a pipe that's constantly filling it up with sand. The weight cannot go beyond 10KG and never below 5kg, otherwise the scale breaks. The sand cannot go over the rim of the bucket. Well, what do you do?
You grab a cup and empty out the bucket every time it starts filling up too much.
At least, that's how I think of it in very child-like, simplistic terms. Bad analogy, I know, but there's absolutely no point in holding Geirskogul.
People are thinking about too many "what ifs" and too much about "punishment". It's not punishing at all, just, don't use a GK or delay it for the next combo, lol. If you don't use GK at all, by the time you hit your 3rd 4th combo, your BotD now has 30s on its timer.
So thinking about it like this, if you're using the "Basic" rotation, you can fit your first Geirskogul after your first 4th combo (IDC4) and you can fit your last GK at 60s or 62s into your rotation just before your BotD refresh, which is either after IDC4, or a Phlebotomize.
This, gives you an amazing gap 30 seconds, or 3 4th combos to use your "second" Gierskogul. http://puu.sh/iLTCA/9fb03d1903.png You don't even need to use your next GK after your BotD instantly either. You can delay it until the next IDC4 combo which pops up.
I don't see what the complaining is about. It's not a punishing mechanic, you just need to learn the timings and the relationships between your GCDs and BotD timing.
That means they are bad dragoons, as the new BotD rotation is 27.33 Potency Per Second higher if executed correctly. It doesn't matter if you miss out on a GK, or if you hit a 100 Potency positional every while, it's a 27.33 Potency increase, straight out.
New 3.0 Rotation:
Old 2.5 Rotation:
PPS is highlighted AB33 - AD33, highlighted in purple "Max PPS".
Stop comparing rotations with newer players who don't understand their new rotations and/or lack skills. Because the math doesn't checkout with your subjective statements at all.