A unifying, guiding hand to steer these big behemoths is HUGE benefit - so long as said skipper knows, understands & respects the source material and is willing to flex when certain aspects of said material must be tweaked to translate better on screen vs. comics. The fact that the Universal & Toho collectives from years past actually work 'cohesively' is a willingness on the part of fans to just loosely accept and/or blindly ignore - as required.
Certainly neither of these decades-long multi-film juggernauts were intended to be franchises. It just... sorta happened. The work behind the scenes on these modern cinematic universes is a daunting task and, frankly, it's nothing short of miraculous that Feige has been able to steer a mostly straight and successful course for such a long period of time with out much in the way of flops - slight disappointments yes, but no outright stinkbombs. (IMHO/YMMV)
I thought & hoped, based on the teasers & trailers from KotM that Dougherty could be that person for the MonsterVerse. After seeing the film a couple of times it is clear - in my mind at least - that he needs more experience and a LOT more tempered self-control. More is not always better and doing something because you can or always wanted to does not always translate into flawless awesomeness up on the big screen. Toho had some measure of control - or at least guidelines - but I doubt they had much say about what we got beyond their own concerns for their properties. If there are future entries beyond GvK then they will
need a Feige of their own ...or they run the risk of crashing & burning. In that respect it might be a better course to steer clear of Godzilla & friends and either shoot for lesser known/cherished characters like 2nd and 3rd string Toho product such as War of the Gargantuas-type stuff, or go after Gamera (though even that could be a hot potato), or just invent forgo adaptions and just let Legendary create their own, new stuff. That final option likely wouldn't give them steam for long though. Studios are understandably nervous about throwing giant piles of cash at something that isn't a well-known/time-honored/beloved IP.
So where does that leave us... ??