They weren't counting behind closed doors. Trump's observers have been allowed to observe the count the entire time. They sued to be allowed to observe from a distance of 6 feet instead of 10 feet.
With all due respect, you are technically correct but morally semantical. Not able to see a level of detail that the position requires is the issue. Not 6 ft vs 150ft vs not allowed in the room.
There is absolutely no evidence of widespread fraud in this election. That's just a fact. There is only one narcissist's bruised ego whining that anyone who beat him must have cheated.
That is a fact, but not as relevant as the fact that a law to witness such a crime occurring is being being broken. Again, this is not a court of law, where an individual with rights is being accused of something and to be considered innocent until proven guilty. This belief is sorely misplaced. This is an election, where widespread acceptance that the number of votes counted is just as important as who they belonged to.
Setting up an area of denial is crime enough.