“My question is even though one may have failed to understand anicca and anatta due to wrong interpretations, but if one had faith in the Buddha and had engaged in studying and chanting
the suttas, contemplated on dhamma and the benevolence of the Buddha, Dhamma and Sanga, then they would have initiated the kusala mula paticca samuppada.”
Sotapanna stage cannot be attained just by engaging in rituals like chanting etc. That only helps set the necessary background.
– Assuming so is a part of “silabbata paramasa” one of the 3 samyojana that need to be overcome to attain the Sotapanna stage.
One needs to understand the anicca, dukkha, anatta nature. That means the unfruitfulness/danger in remaining in the rebirth process.