haha, come on now. This is a good update. Some just should have been there from the start. (and some are a little annoying but reasonable, like the Icebreaker time)
Honestly, what exactly is the point of the 8sec update? Anyone willing to wait for 5secs for additional bullets will now wait 8secs. Its a worthless update. Like most of the PvE ones they're making.
PvP updates I have no problem with. I don't play it much but understand there has been an outcry from the community to even things out. Also, where is the Blink+SG abuse solution?
Its not like In PvE anyone was complaining about Ghorn being too powerful, that the Hammer wasn't depleting your mag as often as it should, or that the Ice breaker was reloading way to quickly. Most of us were actually happy, because once we get them, we feel like the time spent grinding the game gave us access to a great and powerful weapon.
Maybe they received some complaints from Crota, Aetheon and all those NF, Weekly and general strike bosses, which demanded a guardian nerf.
Bungie basically said "You know what, people are going through the content too easily. Instead of mixing it up and making it more fun and challenging (cause you know, we're too busy making new TTK stuff), lets just nerf their guns. The outcome is the same at the end, but it'll take them longer."
Its sidestepping the problem. And it will lead to people wanting to cheese the game even more, in different ways. For others it might just make them put the game down. I doubt you'll get many people saying "finally, I now have a more challenging way to go through the PvE end game".