Comment on "Calculating the Confidence and Prediction Limits of a Rate Constant at a Given Temperature from an Arrhenius Equation Using Excel"

In its introductory sections, the title article seems to assert that there is a failure of the method of propagation of uncertainties (PoU), when applied to a linearized Arrhenius model. In consequence, the PoU formula is replaced by an expression of the confidence limits that can be easily implemented in Excel. This letter explicits that the observed "failure" is in fact due to an improper use of PoU, neglecting the essential term involving the parameters covariance, and that the replacement formula is only an alternative expression of the correct PoU formula.