Well, actually, it does cut it.
Look at the history of the NFL and tell me the team that is consistently good all the time. I mean literally pick anybody.
We say that the Patriots are good all the time. Yet, for about the first almost 30 years of their existence as a franchise, they weren't that relevant at all. No SB appearances for the first 31 years in the NFL, and only two Conference Championship appearances in their first 26 years in the NFL. Stop and think about that for a second... how would you like to have a franchise that didn't play in a SB for 30 years straight? You guys freak out over 3 years. Most of you would have jumped ship after like year 10.
Same thing with the Steelers. Viewed as this great, consistent, historic franchise who has the most SBs. Yet, they had a 26 year gap between SB appearances (never played in one in the 80s or 90s), and had only one Championship Game appearance in that same period.
One Conference title game over 26 years. Can you imagine how you would react if that happened to a modern day team? Again, you'd have jumped ship long ago.
Its called perspective. The best of the best franchises over the course of time win a Lombardi maybe once every 8-10 years, and literally all of them have 5-10 year stretches at least where they are largely irrelevant in the league.