Handicapping in NFL - significance of passing yards

Many people are typically wagering on solid teams that can pass, the ones with capable quarterback, while putting money on football.
 
Has it really a favorable effect on game resolution, or are people mistaking?
 
I'm gonna start widely with research, first taking a look at teams which have averagely more passing yards than their opponent.
 
It comes down to 49,1% win ATS.
 
Aha, so they are wrong,you will say. Just remember they are mistaken about which is the better team. Since these squads are favourites more than not. Casual handicappers don't know the numbers of capping. One must every time match squads vs line, not just vs. other team. More than 70% amateur bettors put their green on favorites.
 
What if dominant passing team is lets say, 50+ yards better on avg. It is somewhat worse then - they cover in 48,6% of games. You would come to similar results if you take a look at teams offensive and defensive passing yards. Squads which have better passing offense than defense, are not doing well too .
 
What if we combine those 2 components together? Here are results.
 
1. Team has bigger offensive yardage that defensive and has better offensive passing yardage than current opponent - 48,4% ATS on big sample.
 
2. identical as above, but with at least 50 yards more this time - 46,7 % ATS.
 
Here is the point: don't trust much passing capability,  it makes the line move. Solid passing teams evidently have much respect from casual cappers.
 
And how about solid defensive teams that do not allow numerous passes? This could be interesting. Teams conceding less passing yards than their opponent are 50,8% against the spread. Seems like we are right. So, what you need to know?
 
Casual wagerers enjoy to put money on squads with quarterbacks making passing plays. It looks attractive, and makes Occasional cappersbelieve they put money on sure thing, but they actually should bet the opposite.