You want this to be the lesson, but it's far from the actual lesson.
The real lesson is that when there's harmful trends in a medium, those trends hurt everyone involved. They even hurt these temporarily benefiting from the trend (since their work fits to the trend), because even if their work does, they may not intentionally or willingy subscribe to the reasons of said trend. And yet remain part of it, and will be seen as part of it like any other part. We cannot escape the societal trends around us. We will always remain part of them. There's no escape, never.
The exact same artwork(!) outside of the context of the current infantilized-anime context, would be entirely fine and not even raise any notice whatsoever - as artwork, that piece is entirely fine.
But the context exists, independent of taste and perception. And we see this, from the current anime (the two last seasons had multiple outright pedo anime btw, including TWO DIFFERENT ONES(!!!!!!!!!!!!!) starring actual lesbian pedos(!!!!!!!!!!!!!), adding demonization of queer people to fuel the fetishes of straight guys) to the current games (including the gamer outrages when a big platform holder makes a company tone down the pedoness a slight, tiny bit).
That's the current context we live in. And as we see, it hurts everyone, from women that would like other kinds of characters (because we sure aren't getting that, and get attacked if we ask for other content, and routinely see men screeching about any woman that doesn't fulfil their little girl fantasy - again, see She-Ra, where a slight athletic frame caused a massive outburst among internet men) to women that like drawing such characters (because some dudes attack them harder than they attack dudes).
What'd really solve this is for there to be a much wider variety of female characters. The only thing that really solves this, to be honest. And for dudes to calm down. :P