No, it was broken before then. This is the second time in two decades that a President has been elected without the approval of a majority of the American public.
No president has ever been elected with the approval of a majority of the American public.
Many presidents are elected by the approval of a plurality of voters, who are a subset of registered voters, who are a subset of enfranchised adults (excluding in many cases felons but also noncitizens and others), who are a subset of the American public. It's true this president, like Bush 2000, doesn't even have that.
The best we can hope for, as in Obama 2008/2012, is presidents elected with the approval of a majority of voters who are a subset of ... ... ... But, say, Clinton 1992 or Clinton 1996 isn't illegitimate even though they don't have majority voter support.
There are tons of assumptions that go into social choice rules.
Wars are fought over shit like this. Hillary lost. The popular vote never had anything to do with getting anyone elected and nobody said we lived in a majority rules democracy.
The provisional state vote tally -> electoral vote translation formula ALSO doesn't have anything to do with anyone get elected -- the decisions of electors do, which is why that's where the petition focuses its (wasted) energies on forcing electors to act faithlessly. Again, this isn't going to happen and the people launching this are aimlessly grieving and change.org is a joke and all that, but the rebuttal to the petition is popular legitimacy, not "this is the rules of the system", because what the petition is asking for is absolutely within the rules of the system.
I think people seem to have pretty grave misconceptions about how their electoral system works!