Current missile system is boring.
Why? Because you have to at least think a bit and not just spam them? Because in a way, they are a finite resource for a while?
There was a time, where there wasn’t even a reload for them. Once missiles were gone, missiles were gone. Many people even protested when the cartridge system was introduced.
Also, it seemed, that a long time, any suggestion to modify cartridge times had been negated.
In the short (and bit surprising) triple-pylon-cartridge-20sec-reload era, strong teams got even stronger, because all they had to do was play half way decent, while all random pilots non stop torpedoed. Now, _that_ was boring.
It is often hard enough to counter legion tactics (attack, kill, retreat, while others attack), 10 seconds behind a good team is easy, 10 seconds if your team is under pressure is luxury. Imagine a good spawn camp with this mechanic. It would be horrible to break.
A module, which would act similar to the pylon, but target cartridge reload times only would do much more good, aswell as a cartridge-reboot-active module, which is my positive addendum to your proposed mechanic: if it comes at a price while fitting, maybe. active modules can be used by all ships, so it’s available to all.
Personally, I don’t see the need for this, so I think I tried to be as positive as possible, sorry 
For me personally, the best thing I could think of in terms of current gameplay was, if for ships, which are not used atm. or generally in the time of the respawn, the cooldowns of stuff would go down faster. This would encourage changing ships, or bring ships which can’t utilize pylons back into the battle, if you get a long respawn timer; and the only missile i would love to see a permanent reduced cartridge cooldown on, was the nuke.
Don’t get me wrong, I would love a mechanic, that would make a missile boat viable. Especially after the fun i had with triple-pylon-prometheus and ion missiles back then. But it should come with a cost.
Otherwise, people get even more lazy, learning proper handling of _all_ weapon systems, not just the ones, which are currently the strongest and easiest to use.
For certain any mechanic, that would make spawn camping even easier, will not make me a fan of it.
Simply because I hate to be on both sides of that.