It's a matter of preference. Do you all want it to be a one-time event annually? If so, you probably won't like this, as is the majority. If you want the league to be more popular in general, it's probably a good thing with all these games.
I'm all for a few more outdoor games a year. If it's the league's goal to pull this off on an annual basis now, it'll likely eventually run its course but even though I pretty much just watch games of my favorite team, for any sport, it's a cool concept that typically isn't done much.
And 6 times a year out of hundreds and hundreds of games in a season isn't much at all. Enough to keep the concept in your minds, but not overdoing it and hopefully drawing some new fans along the way. If you just want 1 outdoor game a year, well I don't know what to tell you.
I look forward to tuning into all of these games. Probably one of the very few but all for these games.