MLB and NHL blackouts on RSNs work differently than NFL blackouts on broadcast networks. With the NFL, you get the games in your region decided by the networks and the NFL, and your local team can be blacked out when playing at home based on lack of attendance. With MLB and NHL, only the teams you are designated for in your viewing area (DMA) you are allowed to see, and all other out-of-area games are blacked out, even if you have the sports pack. The thinking is that if you want to watch out-of-market games, you are required to purchase the MLB or NHL subscriptions, but for most that doesn't fly when you have to buy all or nothing, and not just the team or division you are interested in.
With the sports pack, it used to be that you could catch a replay of the out-of-market game overnight or the next day that wasn't blacked out, but lately (over the last few years) even those are blacked out too.
I won't get into the Fox network (not FSN) Saturday blackout rules, only to say that they are way too draconian.