“Every day, I come by your house and I pick you up.

[Eric Cartman]

You'd think that if they were that certain, then instead of investing in a DOA format war, they would have invested in an actual streaming service instead.

I guess that's Microsoft for you though

They did have a pseudo streaming VOD service on the XBox 360, because - typical MS - that was the hot new thing they were pushing right then.
Then - also typical MS - they got bored of that and abandoned it to push their new hotness, the windows phone.