Quick warning that finance bros call any healthy company that isn't on an extreme growth path "zombies". In VC eyes they're "undead" because that big fat exit is not likely to come, but actually in reality many of these are perfectly healthy companies doing fine. The journalist who wrote this clearly walks in the same circles cause they're happy to call healthy companies that are alive and kicking, serving their customers, creating jobs and so on, "zombies".

That's not to say that surely there's also plenty of once-unicorns which really are borderline bankrupt, and that lots of these companies were extremely overvalued and VCs made bad deals in the ZIRP. But the term "zombie" is a derogatory anti-entrepreneur term invented by VCs who try to encourage founders to "go big or go bust", quietly disregarding the huge incentive mismatch they got. Because unlike the VCs, the founder has all their eggs in one basket.