Has fighting “in the pocket” become a lost art?

[ruedboy]

I think of fighting "in the pocket" as something that Loma does (staying in punching range, excellent footwork, using angles and no clinching) whereas "infighting" (lots of grappling, holding and hitting) is more of an Andre Ward type style.
"In the pocket" fighting takes a bit more skill and consequently is not seen alot these days.