For all of our bluster we'd probably have a good time sitting down listening to records.
I would argue (or rather, "discuss"), that those things you listed about Cream are evidence of their success only, and say nothing of their substance. But I'm also not offering that they have none, they're just not something I've really liked. I'd rather listen to Derek and the Dominoes if I'm digging through Clapton's work.
I'm listening to Eno's "Here come the warm jets" right now, and its way more interesting to me than Cream's output. But I also admit that its probably to odd to fill a stadium. I'm ok with that.
Your missing the point. Cream is but one band I mentioned. Becoming fixated on them strikes me as an attempt to change the subject. I was talking about the year 1967 and listed a few of the many bands that released groundbreaking and respected work that year to exemplify how the landscape has changed.
If you have no response to that, fine. Yield the point and move on. You make good points until you start focusing on particular bands, which is NOT the topic here.