I'm really glad to see the guys out doing it. They don't have to change the world again for me. This could be the beginning to a somewhat happy ending for them.
I hope that they have become wiser and can make the most of their privileged position, maybe even a second or third 'reunion' tour before they really retire and become a Las Vegas act.
Why root against them? They did change the world. Personally, I'm very thankful they showed up on the last half of disco days. Van Halen could not be ignored. Without even targeting disco they thrashed it without mercy. If they can coast on momentum from that, good for them. If you don't like it, don't buy the product. No point in campaigning against them, at least IMHO.