Calling an art critic to complain about a poor review they gave you is almost always a bad idea.
If they reviewed your current work poorly the damage, assuming there was any, is done.
If you are venting in the hopes that they give your next work a more positive review then you have to wonder if a critic who is so easily swayed is worth bothering with in the first place.
But if you feel like you simply MUST talk to a critic after a bad review you should NEVER do what the leader of one of the largest nonprofit theatres in the country allegedly did, i.e. dismiss some of their comments as "stupid" or say that they are not really a "critic".
Because not only is bad form, you also give said critic all the ammo they need to do a blog post and let the world know about the encounter.
Look, I understand a bad review can deeply upset someone. They spend months or years pouring their heart and soul into something only to see it beat up by somebody with a comped ticket and a note pad.
But lashing out doesn't improve the situation . . . in fact it can make it far worse.
Because the critic now has the power to blog about it.
Which led to me blogging about it.
Which will lead to others noticing it.
And thus a review whose power (assuming it had any) had long since expired is revived.
So as a general rule, leave the critics alone. Your life will be easier if you do.
(to be honest I'm also wondering if the artist who called the critic would have been as aggressive if the critic was a "he" instead of "she" . . . probably so, but it was something that popped in my head)