Something doesn't have to include Steve Howe's input to be Yes. For example, the following albums don't include any input or playing from Steve Howe: Yes, Time and a Word, 90125, Big Generator, and Talk. If he even plucked a single cord on the recording of the album, even if he didn't write a single note, he'd have been more a part of Open Your Eyes than any of those other albums where either Peter Banks or Trevor Rabin was the guitarist and Steve Howe wasn't in the band. Even Steve Howe doesn't get to dictate what is and isn't Yes.
And, by the way, I rather liked the album. I don't think it's up there with most of their 70s and 80s material where the band was at it's absolute peak (70s being the progressive/classic rock peak, 80s being the pop/80s rock peak), but it's right on par with their other 90s output (Union, The Ladder), and enjoyable to listen to from time to time.
I applaud Billy Sherwood for doing the heavy lifting to get this album out to the public and keeping Yes alive. He also had a lot to do with Keys to Ascension, from what I've read- doing a ton of work in post-production to make sure it was of high quality. The sense I get is that there was a very good chance that without Billy Sherwood, the band would have either folded up shop, or become purely a nostalgia band that produced no new material. He kept Yes alive. Whether you like his music or not (I like it, personally), he deserves a lot of credit for keeping Yes going from anyone who enjoyed any of the music they've made from 1996-2012.