Grenade balancing solutions

This isn't a bug report, but I felt like the forums might be the best place to throw in my ideas. I wasn't aware there were only bug reports here until I typed this out. If the topic interests you at all (or you're bungie) please bear with me, maybe forward it somewhere better.

I've always felt I had decent ideas for balancing or healthy game economy including in destiny. This one is all about grenades. I'll start with an idea I've seen suggested, with emp grenades being adjusted to (among other things) disable the ability to throw grenades. I really like this idea, and I'd like to broaden the scope on that.

First I definitely think extended animations for grenades would be good, but a big part of how satisfying grenades are is their responsiveness. I think a stat correlating to how fast you can use equipment after a single use, or even better a stack use would be great (so currently bubble single use per "charge" some nades multiple throws in the stack as one ''charge'', and that could be a tool for bungie to balance with in the future too). It means committing stats towards a more grenade/consumable heavy playstyle, and punishing you for swapping to a different type of nade mid fight (you get a cooldown when readying a new equipment) or obviously locking you out of whatever stack is next if you threw both the nades in your stack. Also would mean intentional preparation between fights to make sure your nade slots/choices are to your liking, ready, or full if you threw only one and had multiple stacks (almost like resetting stack overflow). This would keep grenades feeling great and responsive, but prevent full grenade spam as a gameplay style everyone is pressured into. It doesn't solve the potentially unfair feeling of a team throwing all their nades at you at once but it means you can: Count nades, maybe emp to counter play if a team is evidently more grenade heavy, and give you the advantage if a team fails their coordinated effort and wastes their nade ''cooldowns''.

As for frags, they definitely need a bit more of a fuse. This all doesn't solve everything, but to keep the ideas flowing.. Bungie could add a better sound indicator for when you're "cooking" and lining up the grenade, though I don't like the idea of being able to actually cook it like COD. Another completely separate and potential idea is to make grenades a skillshottable projectile, like the recon drone. If you can shoot a grenade out of the air or out of someones HAND, that would be a heavy incentive to not spam them during the fight when it's possible someone could peek and blow YOU up by shooting the nade out your hand.I don't think grenades should be slammed so far back that they have to be brought back up like the WSTR was. I think if it's a real issue bungie want to solve it needs some wider adjustments than tanking the damage or making grenades really sluggish to compensate. Again, cooldowns and adjusting stack sizes give bungie a tool to separately tune future consumable ideas and keep the feeling of the grenades/items as intended (fast, responsive) without forcing them into everyone's gameplay experience. 

Thanks for your time.