Multi-frame series work well in ITK as far as I am aware.
There were a few recent improvements for some exceptional image geometries:
If there is an image geometry / series type that exists and is known to not read correctly, then we should look into fixing it. However, performing geometry checks for the sake of geometry checks can have performance downsides that dramatically impact user experience. We do not want the experience of loading DICOM files to be painfully slow.