According to Ridley Scott, it is -- the studio used his name by implication ("Director's") but it wasn't his vision and he was barely involved.

To be honest I don't like the Special Edition much, which he does consider his vision.

My favorite version of BR would be a mix: the dialogue fixes and crisper image of SP, the color grading and milder violence of DC. The extra seconds of footage are unnecessary, too. I admit correcting the face of Zhora was a big deal though (but I could have lived with keeping the stunt extra anyway)