For me, I'm a continuity guy. If you make x the rules of your world. If you don't stick to it it turns me off. I'm not saying no character growth, as I love character growth. I just want the character to be recognizable. I'm also not advocating stagnation. It's just that Marvel comics has slowly moved away from feeling like Marvel to me. Spiderman was on the receiving end of a lot of bad choices, IMO. Then the X-Men, and F4 were pushed aside. Things I loved about Marvel felt like they were being drowned out.
WWH was just the straw that broke the camel's back for me. To me, it read like a Hulk fanboys wet dream. Everyone, including entire teams, and a returning Juggernaut got fed to Hulk. Dr Strange acted like an idiot. It just felt like everything was pushed aside just so Marvel could have another big event.
I guess I felt like if they don't care about their own characters, or established universe, why should I? I came away feeling like any character breaking change could be made on a whim if it could sell a book a little better. I could be over reading, but that's how I felt. I know others loved WWH, so it's just personal taste.