We would like to remind readers that it is common to work with fixed epistemic parameters in molecular dynamics. Although a full uncertainty quantification analysis would require one to investigate their role in determining the uncertainties in quantities of interest, we have previously shown that the aleatoric uncertainty in MD simulations typically overwhelms that from the epistemic sources, and that the latter's uncertainty is damped in the output quantities of interest. Therefore, our focus in this work is only on the aleatoric uncertainty.