That's great. I get FS1 and FS2 on DirecTV. SNY is available but at an additional expense as it is part of their "optional" sports package. This saves me money I would have otherwise had to spend. Today is a good day.
Just trying to make something that probably is obvious crystal clear.
The Fox Sports is for streaming live games that are televised live on TV (SNY). Seeing that you have FS1 and FS2, and most likely a local Fox station, you can stream the games using the Fox Sports app. When you get into the app, you will use DirecTV as your tv provider. The caveat is that you will need a streaming mechanism, for example a Smart TV, a Roku or a Firestick (and others methods-these are the 3 I use).
Again, this is all about streaming.