Quoted from JohnnyPinball007:If they were otherwise good tenants for 5 years I would let it go myself. (I am easy going).
Another reason to let it go is that during the time they lived there it sounds like the tenant was trying not to bother the landlord with small repair items that would have added up in time spent and repair costs. It is easier for the landlord to just get the place fixed up all at once after they have moved out as long as what the tenant did to keep things working did not result in something major like leaks causing mold in the walls.