Chess engines aren't really good for analysis of openings. For example, engines do not like the K.I.D. or the Alekhine's Defense, both of which are completely fine openings (although the Alekhine's Defense does seem a bit dubious).
Also, as @redtwitz said, what you had in your game is not a true Dragon Sicilian.
Also, as @redtwitz said, what you had in your game is not a true Dragon Sicilian.