I wrote about the power scaling before. This update has given a lot more to work with regarding power scaling, but also confirms many of my thoughts on the matter. It does seem like the level 5 supers are more like dragon ball levels of power while the lower level supers are like x-men or city-level threat tier at most. Malik basically generated an artificial sun that was capable of incinerating all the monsters around it, even S rank ones. The guy is a walking, potentially continental level catastrophe. It also really drives home how tiny and insignificant current MC and his band of miscreants are, having to sneak around the battlefield like small fries dodging the huge S ranks and level 5 supe's duking it out, hoping they don't get caught in some stray attack. I dont know how the mc is gonna evolve to match those guys with his powers. The limiting factor on power scaling seems to be the amount of energy the superhuman can actually harness, as we saw with Clarke feeding his energy to Alice and Alex. Alice's normal attack can destroy a building at range (her gravity bomb) but amped by Clarke it became a mountain destroying calamity closer in power to the kind of attack you'd expect from a lvl 5 supe. The only difference was how much energy she received. What is this "energy" and how does it relate to the supes' powers? It seems akin to mana or electricity, and they all seem to share it in common since they can apparently transfer it between each other or amp one another with it temporarily. With Alice we saw that her body couldn't handle the amount of energy that a lvl 5 like Clarke can muster, so I'm thinking that the biggest difference between evolutions is the capacity for storing and using energy growing.
I think that energy probably has something to do with the origin of the monsters, just expressed and harnessed in different ways (like how we use electricity in different ways to send power or communications). There might be a way to harness it beyond the limitations of the monster-traits. I feel like maybe the mc, with his unique powers, will eventually surpass everyone else by finding a way to tap into whatever this energy source and do some crazy feats. I also think that Xanthe could potentially realize this as well, and his anti-monster weapons focus on harnessing this energy and firing it like a destructive beam. Maybe a potential weapon made for superhumans specifically could work by harnessing their own energy to fire a destructive beam, the power of which scales based on their own innate power. Someone like Alice could put out energy levels comparable to her gravity bomb (perhaps more focused like a rifle bullet to let her punch above her weight class and damage tougher monsters or superhumans) while someone like Clarke can fire Kamehameha's and take out entire cities with ease.
Maybe regular humans can use such weapons with left over monster parts that have left over energy as a battery.