That the differences are minor is argued by scholar Craig Raine in his preface to the Everyman edition. He is specifically speaking against readers being worrie

That the differences are minor is argued by scholar Craig Raine in his preface to the Everyman edition. He is specifically speaking against readers being worried by Gabler's claims, and he uses, for example, the metaphor that Gabler paints a picture of the traditional editions as if they were a shabby suit, but in fact the "suit" is fine and just has a little lint on it. I fondly remember that preface years after I read it because Raine points to some of Gabler's completely minor amendations and says "I don't give a fupenny tuck", a delightful expression I wish was more current in English.