You can spin this either way. Clearly, the web is just another UI for "your data." It's going to have a different set of tradeoffs than native or mobile. Why not just use tools for what they are the best at?

MPlayer can kick the pants off of YouTube in some contexts. Likewise, MPlayer wouldn't be viable for a vast number of YouTube use cases.

I can benefit tremendously from using both Audacity and SoundCloud. Why does one have to "win?"