Well, yes... but it also depends on when you start counting, or when you stop counting. We should be counting the time that the new album will remain current for... for example, the next few years until the album after Iconoclast is being released.
Two years from now, if their "current" album is still Iconoclast, that will be 3 albums in 11 years.
If this is not being done, then we would have to start the clock the day after The Odyssey was released, not counting it, and considering it two albums in 9 years.