If you're asking if the blu ray's are significantly better than the pre-blu ray DVD's, I'd say no. There is a incremental improvement in the quality yes, but it isn't the different between night and day.
It's a matter of nuance.
No, they're asking if the hi def transfers were cleaned up as well as TNG, rather than how poorly Paramount scanned the movies.
The answer is yes, the TOS transfers look fantastic. The blurays allow you to choose the original effects or the CGI effects. It's a win for purists and those who want modern CGI.