You are 100% correct!
This has been a real pain in the ass for me this season with MONDAY NIGHT FOOTBALL MOVING TO ESPN at Matchbook.
I have all my local channels on real time cable, and everything else on Directv with a 7 second delay. Last season I was able to bet Monday night football live real time. This season its delayed being on ESPN.
The only thing positive is the fact that the offshore sportsbooks also get this 7 second delay having to watch the games on satellite with the delay.
Its not a disadvantage betting live on Satellite, but I lost my 7 second advantage that I once had before.