The episodic “protect-a-girl-per-episode-and-have-some-character-development-and-narrative-exposition-as-a-reward” format does a great job of keeping the action side of things fresh and the balance between screen-time in the “Egg World” and in the “Real World” is well-maintained (at least up until near the end of the season), but the extent to which each individual encounter impacts and influences the main characters’ development is poorly portrayed. This ties in with another of my pet peeve with this anime; the characterisation (or rather lack thereof). You’d expect an anime that tries to sell itself as a NISIOISIN-level, metaphor-loaded masterpiece to do a significantly better job at characterisation and portraying character development, but there’s little showing or telling of development between dialogic and visual tautologies and flashy action sequences over the course of 12 episodes.
As for the controversy surrounding how this anime "exploits" sensitive topics like self-harm and the sort, I think people are overreacting a bit. The fundamental issue is that the anime chooses to incorporate these elements but does little to justify their inclusion. Whether or not this constitutes "exploiting" sensitive topics for the sake of narrative material, I'll leave it up to you to decide. Another thing is that I can't help but feel that the show ironically a bit too honest to a fault at times; its portrayal of things like gender roles and similar topics often come across as innocently disillusioned (ie. how apparently "only girls commit suicide for emotional reasons").
Wonder Egg Priority focuses too much on style and too little on substance. It isn't a PSA on mental health and self-harm. It's merely portraying it. It romanticises them, but neither explicitly encourages nor discourages it. Its attempt at representing darker themes like suicide, self-harm, gender dysphoria and other facets of mental health issues commonly faced by youths and adolescents is commendable at best and offensively vain at worst. Though charismatic and well-fleshed, its characters come across as relatively superficial and lacking in depth and nuance for a show that tries to be as profound as it. The pacing gets noticeably sloppier in the latter half of the season; perhaps to compensate for the lack of exposition in the first half, though the show handles exposition very poorly to begin with (as indicated by the regurgitative recap episode). Sloppy, ineffective dialogic and visual tautologies are used a tad too liberally and deprived the story of any mystery, suspense, and nuance it could’ve had. Inappropriate, jarring bombshells lazily cramped in at random points throughout the latter half of the story felt like cheap applications of Chandler’s Law. That said, the anime does deliver a stunning sensory experience thanks to its technical excellence.
