I don't agree.
The hard foul on the free throw was certainly a technical foul - that was stupid.
The foul on the inbounds was called a shooting foul - I might not have made that judgement, but it's not outrageous.
From there, it's all on the coach. He's on the court - that has to be a technical foul and at that point, the next tech and ejection are academic. The write-ups say he lost control - eh, he was on the court, but hardly out of his mind. He definitely earned the tech though. He was angry, and mistaken, about Henry being allow to take the free throws on the first technical and then the call on the shooting foul, plus the sure loss, hit him and he kinda handled it...poorly.
But, outside of calling the inbounds foul a shooting foul, (three shots instead of two), I don't see much to complain about.