Dandadan, both as a manga and an anime, has faced criticism regarding a predictable pattern of events, which isn’t unusual for stories that continue over a long period. Certain viewers have voiced discomfort with the recurring instances of sexual harassment perpetrated by creatures within the story, describing them as unpleasant. Conversely, others have come to the series' defense, suggesting this element is intentionally portrayed negatively and that it's too early to determine if the narrative will become excessively repetitive. The reliance on a formula isn’t unique to Dandadan; many newer action-oriented stories follow a similar structure. However, what distinguishes Dandandan is how well it’s done and its overall quality. Comparisons have been drawn between this series and other popular anime and manga like Monogatari and One Piece, all of which utilize formulas to advance their narratives. Some viewers contend that the issue isn't necessarily the formula itself, but rather its implementation. They feel Dandadan possesses the capacity to be captivating, yet it requires development and greater complexity as time goes on. While the core concept—the main characters embarking on adventures and overcoming obstacles—is based on a familiar pattern, this could be made more compelling through the addition of emotional depth and moral gray areas. The criticism leveled at Dandadan’s repetitive structure isn't an isolated phenomenon, and many fans remain optimistic about its potential to become excellent if it continues to grow and develop. Some viewers have defended the series, maintaining that the depictions of sexual harassment are intended to be negative and that there hasn’t been enough content released for a true pattern to emerge. It is important to remember that conversations surrounding Dandandan's formula and how it's handled are ongoing, and reactions to the series differ considerably. Some viewers find it enjoyable and engaging, while others express reservations about its formulaic approach and execution. Ultimately, whether or not Dandadan is worthwhile comes down to individual preference, and discussions regarding its strengths will likely continue. In essence, Dandandan has drawn criticism for its predictable structure, but also holds promise as a great series if it can evolve and offer more depth. Some fans believe the sexual harassment is meant to be disturbing and that the story hasn’t been around long enough to truly become repetitive. The debate about Dandandan's formula and how it’s presented continues, with opinions on the series varying greatly.

Source on TMDB