Well no, shimmering in certain games is extremely distracting especially if you're sensitive to it e.g. Spiderman smaa Vs dlss (I did this video because people kept banging on about how we just need to use better aa methods rather than rely on dlss/dlaa and supposedly smaa was regarded as being the best but from a temporal stability pov, not in the slightest does it help overall iq in motion).
The more people point out the issues, the sooner said companies will be to act and improve their solutions otherwise if everyone says it's great (even if proven otherwise....) then it will never improve... And this goes for all companies and their solutions but sadly it seems amd fans are happy to settle for "just good enough" and wait months/years for competing solutions rather than pushing amd to improve.
So far fsr 3 sounds/looks great but that doesn't mean there might not be room for improvement, same with nvidias frame gen as it's not perfect either and again, the real story will be when it comes to games outside of the initial pr showcases e.g. deahtloop Vs fsr 2 out in the wild, something which a lot seem to have forgotten about....