Ya I agree, it's really freakin annoying; the two skills have nothing in common besides the fact they're both emitter skills, but honestly if they where both hull heals I could understand, but the skills shouldn't have a shared global CD, it really makes no sense.
No, it makes perfect sense that they are on a shared timer because they both are emitter abilites.
In Star Trek, it takes time to reconfigure equipment for another use.
I said they're both emmiters skills, but the two skills aren't even remotely close so it makes no sense to have a Global CD for either skills; i'm sure the lore natzis wouldn't be that upset if they dropped the global CD.
The problem is the skill is so situational that it doesn't make sense it should have a global CD with another skill that is used all the time.