I wholeheartedly disagree. Modern tactical applications require the use of long NV clip ons, which require a long forend when used in conjunction with a modern full-size scope.
You could maybe make the argument that AT rifles are more practical for casual, daytime shooting, but that's just not the case for actual tactical applications. Every rifle I've been issued and used professionally (Remington M2010, MSR, and a couple of other specialty bolt guns) use chassis that look a lot more like the AT-X than legacy AT rifles. The design is driven by contract requirements, not style.
Scott, I'm gonna plagiarize a couple of your pictures from Range 37 just to illustrate the point.
The below is a lot harder to do with an AT rifle than AT-X. Note how even with the extended forend length, there is no remaining rail space left up front with the ADUNS and HISS.