Yes, it leads to confusion but having it seperately for production and IR is maybe more unambiguous.
And I will add reference to this request (from last year) for even more confusion or to be considered in this context. I really miss this more than any AI denoise toggle button, it may get misemployed as one though:
https://corona-renderer.com/bugs/view.php?id=2646BTW: Having AI denoiser in the Denoise Mode dropdown (=for production render) is questionable anyway. What if someone starts an animation job on a farm with nodes not even having any GPUs or mixed ones or GPUs with less ram than needed for example. Best case: nothing gets denoised. Worst case: mixed frames (denoised/not denoised) or crashes/missing frames.
Since there is still no callback (we will never get it, I'm sure, thanks to the you-know-who-company) when submitting network jobs, there is no chance for Corona to issue any warning. So it can happen to everyone! :)
Good Luck