The problem is that after a few months, it will be hard to undo the damage TBF will have caused. In a few months, TBF will have such a lead on any new organization that such a new organisation would be fighting a lost battle. Newbies will not dig deep in history to find out how this foundation came into being. They will see THE bitcoin foundation with THE lead developer on board, with THE leading exchange on board, defining THE certifications and THE specifications for bitcoin and will stop looking there.
Even if officially nothing is centralized, just the way this whole thing is set up will lead to centralization because it abuses the lazyness/ignorance of the masses. And this is done on purpose.
Nah, as I noted, if there was another org with some big pool operators, devs from other clients, other businesses, maybe some of the ASIC guys, etc, it would be taken seriously. And people/businesses can certainly support and be prominent in more than one of these entities...
Additionally, newbie visibility is only one factor. The more relevant factor is where most of the hashing power puts their vote. Newbies are not relevant in that context, and besides, newbies only remain newbies for a brief amount of time. They will quickly find other reputable orgs if they exist.
Several years out, it's not going to matter if one org was created 6 months before another...