Yes it is. But the fact they weren’t doesn’t change the tenant’s requirement to abide by them. However, they can take the rental agent to task and maybe even get compensation for having to move home if they can prove they weren’t provided. However, I would say that’s highly unlikely.
A savvier renter would have asked to see the by-laws but it’s not something that’s uppermost in tenants’ minds.
This is just a mess with no simple solution and finding out who’s at fault will get no one anywhere.