So someone recently got the Shield of Humanity supplement, and wanted to roll a CG uber-guardsman for a mixed-regiment game. Fair enough, he understands full well that he will be treated as quasi-nutjob by other Techpriest and full-on-weird-boy by anyone without implants.

BUT. They start off with an Integrated weapon, but no Integrated Weapon talent! Was this an oversight by FFG that was clarified somewhere but not added to the Errata? Or is the need to dump some XP to make your character viable to use with his own equipment part of the "cost" for an otherwise OP character base?

I see it as an XP cost for an otherwise OP character base. Crimson armor as standard gear is really nuts.