Absolutely - I had to rub my eyes and make sure I just read that a sustainable, profitable business (by that metric already more successful than most startups) is being referred to as a "zombie" etc.!
Anything that isn't a unicorn is a zombie if its received VC funding. Its a good reason to not take on VC unless your in a market that can magically meet the extreme growth expectations that are tied to that lump of cash.