The reality is that the Cowboys have beaten two 2nd tier non playoff teams with losing records that are pretty evenly matched with them as the scores would indicate. And it is great to put two wins back to back and away at that; however, this team is not a tier 1 team.
Who are the tier 1 teams? In the NFC, I think the Rams and the Saints are a cut or 4 above the rest and would handily beat any other NFC team 9 out of 10 games. In the AFC, you can never count the Patriots out and the Chiefs are burning defenses to the ground. I think their own lack of a defense will come back to bite them, but they can flat-out outgun most teams they play. But I think that's your NFL "Final Four" pretty easily: Rams, Saints, Patriots, Chiefs.
After that, I think that's your big step down. Maybe the Bears and Chargers are like a "tier 1.5", but I think they would still get roasted by Brees and Mahomes. The Cowboys are in that second tier IMO, with teams who can make the playoffs but aren't real contenders. We did lose to teams like the Panthers, Texans and Seahawks who are on that level, but we were competitive with all 3, and with Zeke clicking and Vander Neck's emergence, things might be different if we played them again. I would say that's a fair level of competition for us, where a game with those teams could go either way.
But we're not a Super Bowl team at all - and how many are? Everyone thought the Eagles were lined up for another title run this year, and now they're sub-.500. In a league of 32 teams, it's hard enough to get on top of the pile, and the parity structure of the league makes it even more difficult to keep contending year after year. If you don't have a top 3 coach or a top 3 QB, you're not going to consistently contend anyway, and going on a run a couple of times a decade is about the best you can hope for. We had our runs in 2014 and 2016, now we're just hanging around the middle 2/3rds of the NFL, winning some and losing some and basically waiting for "our year" to get hot again.