Where did you get this 28-30 business days time frame from anyway? And do you know of anyone or a case where this has happened and the account has came back?
I got the 28-30 business days from the longest time YouTube is recorded as taking to answer a
standard channel termination appeal. And no; I don't know of one case where a termination for filing a fraudulent legal form has been overturned or appealed successfully, and the channel returned to the user.
I've seen literally dozens of these cases on the Official YouTube Help Forum; and not one "explanation" put forth by a user terminated for this reason has been accepted by YouTube to date. I suspect that like yourself, they tried to claim they owned content they actually did not in the cases of counter-notifications, for the most part. I've also seen a few cases where names or addresses were not the actual addresses or names of the defendants, and termination occurred for falsified contact information.
And in at least one case, someone filed a copyright takedown for media which although he did the final pre-upload edit, and had watermarked for his channel, he didn't own the base media rights for. This was someone who had created a Top 10 Moments video featuring clips of the TV Chef Gordon Ramsay. Another user stole the video and reuploaded it to his own channel, complete with the first channel's watermark left intact.
YouTube of course recognized major network media when it saw it, and immediately terminated the channel who tried to strike the other one for fraudulent filing. The now terminated channel owner attempted to beg YouTube to allow him to take back the strike, but YouTube's Legal Dept. didn't listen.
Very bad thing to tell legal lies to YouTube!