just gonna ask this here, am i the only one that feels phlegmas damage scaling is kinda weird ?

what i mean is that according to the tooltip phlegma deals 400 potency and than 30% less for every enemy afterwards, phlegma 3 (lets just ignore 2 as its even worse) deals 510 potency and than 50% less for each enemy afterwards leaving us with

phlegma =400+280 per additional enemy
phlegma3 =510+255 per additional enemy

at first glance the higher damage reduction may sound okay considering the higher base damage, but the reality is that at 5+ enemies Phlegma starts to pull ahead of Phlegma 3, which is just weird ?
I get that phlegma is also part of the single target rotation, and by virtue of that alone phlegma 3 is absolutely desirable and superior. It is however obviously designed with aoe in mind or it wouldn't have an aoe component.
I would understand it if we where talking 10+ enemies or something like that, at a certain point it's just fringe cases, especially given its limited range but 5 enemies as the turning point sounds weirdly low.