It all depends on your perceived priorities
Was the life of the folklorist and his construction of correct archives and indexes, as Important to A L Lloyd as increasing the repertoire, encouraging young singers to sing , performing the songs recording the songs.
I am with Bert on this one, more important at that time and now to sing the songs and to increase the repertoire, the repertoire has to be alive that means the inclusion of newly composed songs.[ yes that includes rewrites]
if the songs are not sung, the repertoire becomes dead, nothing more than a museum piece, for scholars to study and argue about.
IMO his Scholarship failings are less important than all his other achievements