I think this sentence is misleading: “… Therefore, a moral person who has not comprehended Tilakkhana, when they generate alobha/adosa/amoha would still have lobha/dosa/moha ‘on the side, not directly.” (P.S. We could say they are there as anusaya, not coming to the surface)”
A normal person doing a good kamma will do it with the good roots. But this person still does not comprehend the Tilakkhana and thus avijja is present even in the good (punnabhi) sankhara. Avijja is not a cetasika. It is not knowing the truth and therefore the absents of pannindriya.