Yet again iv been told?

iv bee told im out of order for feeding my 2 greys tinned food oh how cross i am..after a continual battle with dry/soaked food that seems the only thing they will wolf down they have 1 meal tinned and 1 meal raw meat now i brush there teeth every day and they have raw bones 2 munch on does any one else think im wrong to feed them tinned i worry all the time bout it thanx in advance for your thoughts xxx