How would reanimation of a probe be much different than CPR on a human? (from a philosophical point of view). I can accept that some memories may be lost, but if enough of the original Andrew remains (and we won't know that until he is resuscitated), then by all means, we should try to get him back. I wouldn't expect a mechanically based entity to be as subject to cellular decay as would a biologically based one, so our main problem should be in recovering as much memory as possible since mechanical repairs are very doable.
Captain Zot