Yes, Bioware included some of the new kits in CLASWEAP, but that was apparently before they finished overhauling the proficiency system and switched to WEAPPROF. A clue that CLASWEAP isn't used, aside from the proficiencies not being available during character creation, is that some of the new classes/kits (Monk, Barbarian and Wildmage) are listed in WEAPPROF but not CLASWEAP.