I'd take this with a huge grain of salt, at best; after all, the time between the current production and the "Gokaiger adaptation" could be quite large and much could change between then.
Plus it specifically says "back when Gokai had just been provisionally announced" and "theorized Gokaiger was going to be like Decade", and we all know how well attempting to jump the gun on assuming the themes/plot of a Sentai prior to it's formal announcement (from it's very early production stages) has worked out, such as the clash of ideas between "In Space" (perceiving it to be "space-themed") and "Megaranger" (actually "video game/digital device-themed", the space ships being an ancillary aspect) and later "Time Force" (hoping for it to have tons of time-travel akin to Doctor Who [this was even seen in very early promotional material for Time Force]) and "Timeranger" proper (while a "theme," the setting stayed predominantly in the present-day/urban areas rather than having "lots of time-hopping").
To sum up, this was one staff member, whose name was apparently not specified, and his, or her, wild guess based on the limited material at hand, possibly provided second hand at that, and not really their overarching plans for the Power Rangers incarnation or anything to really gleam from as to their opinion's on the show(s) or their respective potentials.