Should all washing machines come with a built in Spirit Level?

Its just occurred to me or I think a good idea if washing machines came as standard with a built in spirit level either an electronic one on the LED display or a physical one behind the porthole door . It is so important to get the level of the washing machine level on installation so as to make sure the washing machine is at its quietest especially when spinning and I know it will only be used in installing and then most probably not used after that but it would still be good. And if its a top notched machine with electronic LED / Dot matrix display and internet / wifi connected (or connected to the manufacturers support servers) if people phoned up support and said that their washing machine is noisy and the technical support initiated a diagnostic test on the machine remotely then they could tap into the electronic level sensor and then say 'yes we have identified the problem is you machine is not level' and then save an un-necessary callout by engineer.