The hardcover editions of The Children of Húrin and The Fall of Gondolin are not without flaws: truncated or even missing maps, partially revised translations of certain quotes. But the worst remains the collector’s edition of The Lord of the Rings, which is a major misstep—riddled with typos, quotes that do not use the previously translated texts from the Bourgois collection but are instead retranslated, an index that is incorrect in most entries, and so on. The fan community is also puzzled by the delay in the publication of the previously unedited French translation of The Defeat of Sauron and by the fact that another volume initially announced (The Fall of Númenor) is no longer mentioned by the publisher.

Vincent Ferré reveals that he was named "literary advisor to the family" in Christopher Tolkien’s will, with "a special mission concerning his archives."

Adam Tolkien, the son of Christopher and Baillie, is reportedly also in dispute with Éditions Bourgois, which allegedly led him to reclaim his translation rights.