I wouldn't read too much hoopla into this; it's basically what they've been doing on and off for the last couple years anyway, similar to Wednesday night, and it's non-exclusive so the local teams will still have their broadcasts, unlike on Sundays when it's Disney-only.
The big news here is bad news: no more Memorial Day, Fourth of July and Labor Day telecasts. Phooey on them.
I read somewhere (I think In Gammons' column) that Jay Buhner has rebuked offers to have his number retired because he thinks Junior should be the first Mariner to have his number retired.
That is way cool.