I thought i should had a low expectations. i found that i was wrong when their manager told me this is how other builders do too. well, i am telling you, no! i am the only case within my friends. they are so use to shut you up with a "industrial practice."
"This is industry standard and is practiced by all builders. This is to mitigate cost to the consumer as this area is not visible. We also do not put tile/flooring under cabinets as this would be pointless and economically irresponsible. This is not a matter of cutting corners, it is a matter of reducing cost to our valued customers. "
Apparently from Mattamy point of view, you should never change your appliances.