Interesting that you find it more effective. As I mentioned I only use melee unless I don't have a choice. If you hit the melee is effective, but the problem is the constant misses is what I'm bringing up. I'm not having trouble killing slow zombies. The problem is fast moving zombies are near impossible to hit and it just is frustrating.
As for vultures, one isn't hard to hit, maybe they fixed the hover over you and whack you a dozen times vultures, I'm not sure, but I got onto a roof, and didn't notice the vultures. 3 of them flew up and were on me, and I swung several times and was unable to connect with them. If it were an actual swing rather than the gun shot attack, I would have hit them and kept them off of me. But I just turned jumped to the second roof line, and cleared the building since I took to much damage. Now when I see birds I pull out the 9mm.
Of course we can adapt, and I'm not opposed to new systems, what I'm opposed to is the obvious way the current melee is broken. Some people may not have an issue with it like you, but I'm sure I'm not the only one that thinks they plain borked the system and didn't bother to find a proper way to deliver an actual swing.
Like I said, if you make the swing a gun shot like the firearms, it's a cheap and lazy way to make melee combat harder. Perhaps they're driving us to use firearms since there are so many laying around, but there is a reasonable solution to the melee, it's whether the pimps will implement it or not.
Alpha 16, my bases were catwalks. I had spike traps I'd run around and if zombie cops came and there were to many of the others around for me to melee them, I'd have to run up on the catwalks to shoot them. But it was a new and exhilarating way to fight them and I enjoyed it immensely. I did try it in this alpha but with light weight blurry eyes after one beer, made it tough to hit anything, plus the broken melee made it impossible, literally impossible to hit anything. 24 enemies running and after a handful died on the spikes, they would avoid them when I ran around them. it was a complete cluster frack. I survived and then accidentally found out how terrible the new AI was and built my next base to exploit the AI. glad they're at least going to change the AI.
I've been watching games4kickz's playthrough for alpha 17, and he is now very sarcastic every time he misses with a shot that he knows should have landed and jokes about it. I'm not the only person this bothers.