I already posted it doesn't leave app when you select a different player
that would be pointless
I think the point they are trying to make is (and I believe there is some confusion here as well), when you select secondary player a pop up window shows up saying "BuzzTV 2". I think they think this is the player that is being offered and when they select "use this player" the BuzzTV 2 player is what is being used. They are not being offered any other selection. I believe the confusion lies with the popup window's title BuzzTV 2...this is only the title of the window, not the player being used.
In turn, I also believe the point they are trying to make is, how do you select the secondary player you want to use. Selecting "secondary player" will select a secondary player, but which one did it select? Did the Buzz app select MX Player, did it select VLC Player, did it select Perfect Player or another of the other 15 or more media players one might have installed on their box. When selecting secondary player, you should be presented with a list of installed media players that you can select from. You currently don't get that option.
I believe these are the points they are trying to make.