Who all agrees that he had pretty good reasons to be ticked off at his sons actions.
He returns to a kingdom in ruins. a huge number of his subjects are dead or missing. He notices that the mastermind of the plot has been ressurected by his heir.
A few looming threats on the rise that nobody is dealing with. Yep I be extremely pissed off and be thinking of quick brutally efficent means of dealing with it. Good leaders can't be popular all the time.
Having recently reread the entirety of YiM, Vol.1 and Vol.2, I have to say Odin is depicted as way more unkind than ever.
But, of course, ever since Fraction joined Marvel, few of their comics have escaped his corrupting touch.