what is your problem I have said your cd is very good,I have criticised two tracks,the same criticism that the reviewer made.
I know my limitations,I also know that I can sing, play the concertina and the guitar well[check out my you tube videos or my cds],the harmonica is not my first instrument,but I am still a munster champion,and one of my pupils won the all ireland on the harmonica,I would think that would make my criticism valid enough.
even if I couldnt play anything,that would not be a reason why I could not make a valid criticism.
I think if you used more chords and some octave work,your playing would be even better.
octave tongue blocking is a difficult technique[I am working on it myself]but I reckon it sounds pretty good on sliabh luchra music ,reminiscent of the octave fiddling style.
many music critics can not play anything,does that stop them?
no, of course it doesnt.