Yeah, if anything is growing in the culture medium that isn’t part of the standard process that batch is waste. There are many, many more ways for growing anything relying on a bioreactor to go wrong than right.
I find that nauseating and gross. Maybe I'll change my mind if I've actually seen and tasted such a piece of "meat", but right now it's on the same level as Soylent for me.
I'm curious: What disgusts you about it? Assuming "meat is meat", is there a difference for you between "grown in a sunlit grassy field" vs "grown in simulated conditions"?
Going Further: in "Illegal Alien" by Robert J Sawyer, there is mention of "grown meat", basically meat "grown in and squeezed out of a tube" from a spaceship's bulkhead which crew-members slice out for personal consumption as needed during space flight. Would this also be disturbing?