"Obsolete" is pretty strong, clearly it's still limping along and hasn't quite yet succumbed to Benjamin's Franklin's expectation that it would fall to Despots if not vigoriously maintained.

But it was absolutely seen as "a good first effort" that could be improved upon in the 1890s.

Evidence of that is the new Australian Federation used the UK Westminster system and the system straight of Washington as inspiration to create what was considered "better" .. a Washminster system of government.

The current degeneration of a system founded by people opposed to Party Politics into a Hotelling's law quagmire of two parties, neither particularly broadly representative of general population, should be sound evidence that something went wrong along the way.

That's the emergant behaviour of discrete iterations of the US electoral system as was and as is for you.

Still, absolutely thumbs up for effort and intent those bold founders.

Shame it didn't scale well and got captured by corporations.