I don't know if English is your mother tongue, because I said that the sentence written by me earlier could indicate that it was a remarkable quality, do you understand? Indicate. Simply put, I didn't think it's the best animation in the context of what I had written. It's a simple composition of a sentence and I don't understand if you just didn't understand it because you're talking about the same thing and I don't want to repeat myself. So please stop misinterpreting the sentences I wrote. Then, I said that I personally liked it better than the animation of the second season, which is an opinon I will stand behind.

I don't claim it to be the epitome of animation perfection, but the term "impressive" in reference to the teaser PV may have implied witnessing remarkable quality. Personally, I found it more appealing than the animation of the second season, so I was quite satisfied, but I agree it is above average. Nonetheless, it's crucial to recognize that teaser animations are often preliminary, leaving the final outcome uncertain. Considering the production nuances and the significant figures from the first season, achieving a comparable standard of quality appears beyond reach from my standpoint. Consequently, anticipating a similar achievement seems unrealistic.

What exactly defines the "OPM standard"? Was it Madhouse's 2015 version, where Fukushi as the animation producer curated a dream team of industry talent? Or was it director Shingo Natsume's network from his work on Space Dandy under Watanabe, drawing in top-tier animators? First season set an above-standard benchmark that seems unattainable now. As far as I know, the so called “OPM standard“ fell by the wayside in the very next season, due to production reasons. Personally, I never expected we'd witness a replication of such high quality as in the first season.

The teaser showcases impressive animation and choreography. Quality isn't solely dictated by the studio, the time and talent of the animators play a crucial role. Certainly, the final product will be the ultimate judge of its worth.

While your observations are accurate, the stumbling block lies not in the aspirations the anime/manga seeks to impart, but in their actual realization. Prior episodes meticulously explored a segment of the backstory, setting the stage for a pivotal moment in the fifth installment that was meant to deeply resonate with Geto. However, this pivotal shift, sparked by a conversation with Yuki Tsukumo, felt abrupt and lacking the thorough development it deserved. The anticipation for a more intricately woven transformation was palpable, yet the execution condensed it into a mere 20 minutes, leaving a sense of missed opportunity.