1,662 4th-qtr pass attempts is the equivalent of 49 games, or more than three full seasons without a call.
The figure you should be looking at is the number of actual RTPs that have been called for Romo AND how those calls have been distributed (i.e. various quarters/halves of the game).
I'm willing to listen if you can demonstrate why 2nd half RTPs are somehow worth more than 1st half RTPs.
All "1,662 4th qtr pass attempts [...] without a call" gets you is interesting, but empty speculation, unless of course you have documented time stamps of specific plays where you think an RTP should have been called. Even then, you're simply arguing a subjective call on the field. You'd also have to demonstrate that when these specific "missed calls" weren't made, that they were indeed during close games or at critical times.
I'm in full agreement that Romo, overall, seemingly hasn't received his fare share of RTP. That's based on the dearth of RTPs he's actually recieved in contrast to the large sample size of opportunities (i.e. pass plays) to draw inference from. Basic statistical analysis....the larger the sample size the more reliable the inference.
You're trying to draw inference from the
distribution (i.e. at what point in the game they've been called) of the actual RTPs he's received. The total number of pass attempts have no relationship with that kind of analysis.