I may be being a little harsh on Justin, but it does fit in with what I've heard/read from others.
As you know, after their Seventh Sojurn, they took a break for several years. Six years later, Octave (with "Steppin' in a Slide Zone") showed up, and they were back. Turns out the rest of the album was okay, but definitely not up to previous standards. The sessions were also somewhat troubled, and Mike Pinder ended up leaving the band before the album was finished.
Enter Patrick Moraz, formerly of Yes, Refugee, and a long successful solo career. Long Distance Voyager was a terrific album, IMO largely due to Moraz's keyboard work which frankly left Pinder's in the dust. Refugee did not last long, and Moraz was not treated well by Yes (he was basically dumped when Rick Wakeman decided to quit pouting and come back) so it was very exciting for him to be in a band with a successful album and a lot of that success attributed to him. He submitted some songs to the band (as all members of The Moody Blues do) but was basically shot down, told that he was "just the keyboard player". It was around this time that Justin Hayward began asserting more control over the band.
There's not actually a lot of keyboards on The Present and The Other Side. Where the credits used to be pretty evenly spread among all band members, one started seeing Justin Hayward on pretty much everything, sometimes with John Lodge and the occassional Ray Thomas. Edge and Moraz got one collaborative credit on The Other Side.
Moraz eventually quit. All trace of him has been removed from The Moody Blues official website. He is not listed as a member of the band on the 80's albums on which he appeared, even though he was credited as such on the albums themselves. Justin Hayward says that Moraz misunderstood the arrangement from the beginning. He was always a hired gun, never a full member of the band. The album credits don't agree, Hayward is rewriting history to suit himself, thus my conclusion that he's a dick. I'm definitely biased (having been a keyboard player and often treated as a second-class citizen even in bands that I helped found) but revising your band's website to specifically remove someone who by many accounts helped bring your band back from obscurity is nothing less than a dick move.