I'm seeing this in many races and it really is making me angry. How can the camera person be so stupid to think that nobody wants to see the chase pack, or the whole field coming through? That's what makes it a race.
The other part is when the winner crosses the finish line, they only follow the winner. Many times the best part of the race is the people fighting tooth and nail for fifth place or to qualify for the next heat. But for some reason the stupid camera has to follow the winner while there is some amazing racing still going on. There is plenty of time to show the winner after the majority of placers finish.