It seems so. He has clarified. This was last week and the place has re-opened.
He's been back in and says that the quality is way down.
In other words whatever they had to clean was bad enough to get the place shut down, but was also what made the food taste so nice.
This is an active, ongoing story.
Best pizza I ever had in Ireland was from the Mizzoni in Ballymun/Santry. Went in to pick up a pizza one time and the chef was smoking a fag and drink a can while rolling the dough.