You're missing the point... "works better over dialup" means it works better over any faster connection too. It's not a meaningless title when it shows how fast the stuff works on a slow connection. Just because you may have fibre optic, I certainly don't. And RDP works better over my LAN as well. Get it now? It works better EVERYWHERE.
I really love your third paragraph... yeah no shit, the cloud requires bandwidth and there are latency issues, so it actually in fact becomes very important to discuss these arguments; as in, solution X performs better than solution Y. Holy crap man did you even think about that for more than 2 seconds?
Yippee for you, you are allowed to decide for yourself when you prefer local or remote; many of us don't have the luxury (think business).
Attitudes like your are part of the problem... you just can't believe that a windows / msft solution would be better than the equivalent in linux, so you wave your hands in there, spout a lot of bs, and nothing gets fixed. I'd pay good money for a linux solution that works just as good as RDP.