You appear to be trying to imply that because one prominent tech guy (CmdrTaco) pooh-poohed the iPod at its announcement, only for it to become a smash hit, anyone who looks at an announcement and says "I don't think this will do very well" is automatically wrong...? Or something?

There are fairly serious differences between the release of the iPod and the announcement of Facebook's shift to "Meta", and one guy being wrong one time, however famously, does not have any implications for other people being wrong in completely different circumstances, so this feels pointlessly dismissive.