Thanks for the good compiled list. Suggestions/Comments well taken 
the fs checker does exist for VMFS from long time. its just that not all bells and whistles are exposed to end users due to the nature of checker. At wrong hands (not enough fs internals) it can do more harm than fixing issues. hence its not general purpose for fixing those.
AFAICT we may proactively be blocking this to ask user to file SR or involve support teams so that the actual root cause is determined and product improved, before using checker tools to fix those issues (minor or non-minor)
lot of times issues exists which are outside of any FS ( hardware / SAN / Storage side issues etc)
Thanks,