Wow, you don't know the first thing about what happened, do you?
Why wouldn't the second set of measurements, taken at halftime 2 hours later, not reflect what had happened to the footballs since the previous test (pregame)?
Brady went to Europe with his wife to celebrate her retirement. That is where his phone broke. On the day he returned to the USA, he replaced it. Why not? Brady had told the NFL that they were not getting his phone. They said, IN WRITING, that they were OK with that. As long as he shared his phone records, they did not want his phone. He generated lists of every text, call, ans email he sent, including the texts to the ball boys. It showed that there were NO additional texts, calls, or emails to these guys. The list from Brady showed texts to 26 other Patriots coaches, Patriots players, NFL players, and NFL personnel. The NFL decided that checking up with these 26 people, known by name, was too much trouble.
Well, yes, I think I do know what happened -- Brady destroyed his second phone (but not his first or third phone in that time period) to keep the investigators from seeing the actual messages.
P. 21 of the Wells Report makes clear the investigators sought the actual messages not just "his phone records" or a list of all phone calls and messages as you claim. From p. 21 of the Wells Report:
"Similarly, although Tom Brady appeared for a requested interview and answered questions voluntarily, he declined to make available any documents or electronic information (including text messages and emails) that we requested, even though those requests were limited to the subject matter of our investigation (such as messages concerning the preparation of game balls, air pressure of balls, inflation of balls or deflation of balls) and we offered to allow Brady's
counsel to screen and control the production so that it would be limited strictly to responsive
materials and would not involve our taking possession of Brady's telephone or other electronic
devices. Our inability to review contemporaneous communications and other documents in
Brady's possession and control related to the matters under review potentially limited the
discovery of relevant evidence and was not helpful to the investigation."
As you can see in this passage, the investigators agreed not to take possession of Brady's phone if Brady's counsel screened and controlled the production of "text message and emails," not just a list of 10,000 communications 2-3 months later. Of course, Brady's counsel didn't get to do this because Brady destroyed his phone. Brady made sure that not even his own lawyers got to see the actual text of those messages.
P. 11 of the July 28 ruling says the NFL requested the "documents and email/text messages (including on [Mr. Brady's] phone." It is undisputable that the NFL requested the actual messages. P. 12 of the July 28 Goodell ruling also says that Brady's own forensic expert was not given access to the phone that Brady ordered to be destroyed. It is undisputable that Brady intended to make sure that the evidence contained in those messages never saw the light of day, plus he hid the fact that he had destroyed the phone until the hearing.
It is silly for an educated person to suggest that the NFL should have started investigating 10,000 electronic messages on the day of the hearing (when Brady disclosed for the first time that his phone was destroyed).
In this day and age, you can't seriously be asking why someone involved in a highly-public, highly disputed legal dispute shouldn't destroy evidence like that. This isn't new -- both Richard Nixon and Oliver North were accused of destroying evidence by deleting or recording over audio tapes (Nixon) and by shredding paper records (North).
Brady himself made sure this mess will never end. Guys like you are not helping the situation.