1) no obstruction. Wells has conceded that Brady fully answered all of their questions. Brady did destroy a cell phone that the NFL emphatically said they didn’t want.
2) there were two investigations - sort of. The Wells investigation was announced as independent, but wasn’t...even a little, apparently. When Goodell heard the appeal, after (according to the last of the ever-changing pleadings) having issued the penalty. The released transcript shows he was, even at that late state, unfamiliar with major parts of the issues. Goodell then issued an appeal ruling with a series of definitive statements which turned out to be unequivocally false.
3) per the released figures, only one ball was as much as 2 PSI low, and that one only if you measure with the wrong gauge. The “11 of 12” leak has been attributed to NFL officials at the heart of this, and was left out there for months uncorrected, and with the Patriots prohibited by the league from telling anyone.
4) the Patriots discovered and submitted to the NFL video of McNally walking right past league officials, and going into the bathroom for about a minute and a half. Given that they are only talking about a couple tenths of a pSI, it is exceedingly unlikely that even if McNally could have done so in that brief amount of time that he would have bothered to do so little.
It is absolutely obvious you have NOT read the NFL response to Brady’s appeal and I suggest you do so before commenting further. People have been put to death in capital murder cases on less circumstantial evidence than what is available here.