It sounds like they have the right idea, but make the wrong criticism. It feels like the right criticism would be that they waste an opportunity to actually utilize Magnifico's sympathetic motivation to make him a deeper character and ultimately fall back on generic "power is everything" villainy. To make a comparison, it's why TotK's version of Ganondorf feels like a big waste while Ashnard in Fire Emblem is far more compelling despite them sharing the same "sow chaos to eliminate the weak" motivation.