I've been thru several (not all --- not even "most") and I'd agree except for MCO (Orlando).

How can thousands of over-tired (departing) and over-excited (arriving) kids make an airport anywhere NEAR "stree-free"? And let's just say that families going through security aren't exactly speedy! It's a way different experience than a line of frequent fliers headed out of DCA on Friday afternoon. Now THAT line is efficient!!
Completely agree w/ MSP -- flew THRU there at least 70 times in the last year!
Travel safely.
gll