I too find the claim that 60% of restaurants will close in the next three months to be a case of reckless hyperbole.
Food service is a low margin business, no question, and even in the best of times, marginal operations are often performing on the thin edge, overlooking the abyss, but, at least in the Maritime cities, I am pretty confident that most restaurants will survive this pandemic.
The restaurants truly at risk are those located in major tourism hotspots (these communities are badly over-restauranted), and a poor tourism season will cause many of these locations to close. In the larger cities of North America, sky high rents can take a huge bite out of operating margins too. There could be a lot of casualties as a result in places like Montreal or Toronto.
Cities like Freddy or Moncton though are probably "safe spaces" for restaurant operators (at least in relative terms). We have not been badly affected by COVID-19, the customer base is pretty stable, rents would be less than in places like Toronto, and for the most part, we are not in a position of oversupply of restaurants in our communities.
Will we have restaurant business failures - absolutely; especially if the predicted second wave causes the economy to shut down again. I personally don't think it will get that bad though, and I would be surprised if there were more than 15-20% bankruptcies within the sector over the next year.