Yeah. Minn. & St. Paul and the suburbs are genuinely the same city geographically. Including Austin with SA makes a little sense, but they are really distinct. It'd be like including Hartford in NYC. They're close enough that fans travel on occasion and it's close enough for TV, but the smaller city is far enough away to make travel a tad prohibitive.
Yeah it makes sense to combine the Twin Cities into one metro area, just like Dallas-Ft. Worth. Austin & San Antonio are distinct (Austin is much more liberal & elitist, San Antonio more blue-collar) but they're closer than you think. Lots of people commute down I-35 from 1 city to the other every day, and there's talk of putting in a rail system to connect the 2 cities (someday)...