The vegetal dock Martens are actually great quality based on 2 friends of mine that own them. Not sure what anecdotic evidence is worth though.
A comment found on internet has a possible explanation:
> I cannot recommend them highly enough, especially as everyday footwear because real leather should not be worn everyday as they need time to dry out
https://www.reddit.com/r/DrMartens/comments/18ygnd4/for_thos...