Mold in Green Lettuce pod

My 9 seeds were started on July 18 and all are doing well except one green lettuce pod which has mold on the surface. Should I discard this plant so it does not affect the others? I saw Ms. Tenney’s post from Aug ‘18. Is this the same safe mold?

Hi, indeed, finding mold on the soil surface may raise some questions, but it is really harmless at this stage. Some growers scrape it off with a tissue or sprinkle some cinnamon on it to keep it off.

Thank you.