nerfed FP = nerfed Agents
Agents need access to other profession's nanos (with very few exceptions) if they are to be effective. Agent False Professions come with hefty penalties so even with full access to other professions' nanos, the Agent will still be weaker then an actual Fixer, Soldier, etc. No Fixer has ever tried to join a group only to be told "sorry, we don't need you, we have an Agent in FP Fixer."
False Profesion isn't a perk of being an Agent, it is a core aspect. And while its nice for other proffessions to be unique and feel wanted, its pretty hard to have a profession whose defining trait is mimicry not be allowed to mimic. Because FP has strong penalties and because very few, if any, Agents have the time to create a full set of implants, equipment, etc for each FP, Agents will never be as good as the original profession.
Agents don't take away the need for other proffesions, Agents fill in when that proffession isn't there. Otherwise teams of all Agents in FP would be viable (lol, imagine that!).
Agents also are limited by their skill level in the various nano skills--they don't have access to many of the FP nanos simply because they haven't spec'd their characters to be a master of all nano skills. Choosing what nano skills to sink valuable IP into isn't easy when you have to decide how it will effect your ability to cast every professions' nanos.
To the people who dislike Agents using their 'good' skills I ask, do you only want Agents having access to the crap nanos? That would kill FP and with it be a huge Agent nerf. Imagine if every other profession had a FP: Agent nano. Do you think anyone would use it?