It seems like this cell barely evolves, because the system they built for duplicating the DNA makes very few errors.

Natural life tends to evolve, which may have consequences for production.

For example, quorn production has to be restarted from a seed population after ~1000 hours because it tends to evolve colonial variants that break the product standards: https://www.davidmoore.org.uk/21st_century_guidebook_to_fung...