The industry isn't a person.
Somebody saying "You're a dick" to Phil Fish is an attack
Saying "Japanese games suck" is an opinion.
Who has he insulted without being attacked first?
Hypothetically if you were a japanese developer these are really one and the same, that is they're both opinions.
Not saying that people attacking him, but "you're a dick" is just as much an opinion as "japanese games suck" even if the attack isn't personal. My view on the matter is that I don't really like the guy but whatever: I support the rights of the people voicing their opinions on the man AS WELL AS his right to say whatever the hell he wants.
The problem comes in when he wants them to stop. Frankly that's on him, he knows he says a lot of stuff that is generally disagreed with and he says it in a less than eloquent manner. If he wants people to stop that's really on him to stop first.