Similarly, the article conflates A16Z leading the seed round but not the follow on round as being some kind of smell. A16Z certainly do lead follow-on rounds, but it isn't the norm. (It would be interesting to know if they exercised pro-rata or not, but even that isn't necessarily indicative of anything.)
I don't know if there is or isn't fraud here, but the only evidence seems to be that Kagan was good at fundraising, raise a lot in a frothy market on little traction, and did not succeed at building the product or a successful business.
One of the best things about the tech ecosystem is the lack of stigma around failure. I hope people don't lose sight of that as round sizes and valuations spike.