That is easy...
Because Youtube is not rendered in Flash.
For example...
I could design a keyboard that did not have an 'I' key...
But you could still use it to type 'team'.
(even though it doesn't support 'i'.)
.
Really? Sometime I see message on you tube when opening a video saying "you need to download flash/update it to see this video" something like this.
Btw call me a newbie but I didn't understand the example, what does 'I' have to do with 'team'? I is not included there. Other than that thanks for trying to help