And you know where that E. coli comes from, right? It’s when farms put cattle too close to their lettuce (this is shockingly common) and the E. coli goes from the cattle shit and washes down to the irrigation system, which goes to the lettuce. My understanding is this still happens due to how the irrigation/water systems work for hydroponic stuff.
Not sure if you’re agreeing with me or you were trying to point out a flaw, but it’s still all caused by animal ag being shitty.