While Firewall assumes a level of biofeedback filtration, the Redundant BF is supposed to go beyond that. On a quick skim I did not find anything that says otherwise. The Living Persona pretty much is the equivalent of the commlink, providing most of the defensive dicepools and limiting the amount of complex forms they can sustain. Forbidding the use of RBF's would hurt Technomancers in an area that they are already weak in, so I don't see the gain in it.
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[Edit]: Which paragon would you suggest for the above build?
[Edit 2]: Is it worthwhile to get a point of cyber/bio? A nanohive and a cerebral booster seem like a good idea. Maybe even a synaptic booster, since he's going to be spending most of his time in AR, not VR. Thoughts?
The Great Tree Paragon seems to fit that character to a tee:
The Great Tree
The Great Tree is a master planner and creates a song which resonates deeply in the core of the Matrix, far beneath the surfaces which ordinary users interact with.
Advantages Followers of the Great Tree gain a +2 to Registering and Reregistering; +2 to Leadership tests.
Disadvantages Followers of the Great Tree have a tendency towards megalomania, believing that their plans are “perfect�. When confronted with information that implies that a plan they have concocted is unraveling or insufficient to cover the responses of an enemy, they must make a Willpower + Charisma (3) test or continue ahead with their original plan, confident that their plan cannot be stopped by the peons arrayed against it.
More IP's never hurt but the other cyber/bio heavily depends on how the rest of the character turns out, since there is very little ware that directly benfits a TM in a meaningful way. Extra Logic from cepbral booster will add to the number of sustained CF's but since you plan on letting a sprite army do the heavy lifting the extra one or two programs you can sustain seems like a minor benefit. Remember that Technomancers roll Resonance + Skill for nearly every task so any of the +x dice for <attribute> based skills wares are not going to help.