I don’t see it as a logo change, it’s just part of the album artwork and aesthetic of the era, they’ve said that themselves. It works, and the artwork was getting boring with the logo floating above them on every single. Sometimes it was oversized and centred in a way that it hadn’t been. The worst offender has to be the Light Up The World single artwork.
Also, the logo changed quite often back in their original run. They didn’t have the shape around it for the first album’s singles. It changed for Deeper Shade of Blue and When I Said Goodbye, again for Buzz/Stomp, and really only became what it’s been for the last few albums on Gold! It’s definitely iconic, but in a way I’m happy to have something fresh. They’ve already brought it back on the new tour poster / Steptember posts anyway!