Opinionated frameworks are great as long as you fit the designed use case, you fit their documented and undocumented limits, and the pricing model is compatible with your business model. If you fit that, yeah go for it. However, many don't and find themselves reaching for the more flexible solutions, where yes you pay a complexity penalty, but you can still access the economies of scale of the community and ecosystem. Since so many people across so many domains find themselves in this situation, the flexible solutions get popular.

Another factor is people's skillset. As an individual contributor, I want to learn the skills with the broadest possible applicability in order to ensure ensure my long term career opportunities. Anyone that has been around the tech block a few times has seen the winds change a few times and nobody wants to be in the situation of having of a resume with none of the popular buzzwords and struggling for work. This is one big factor why people gravitate towards more broadly applicable solutions and away from more niche opiniated frameworks that have potentially a smaller applicability.

The the flip side of that is that I, as a manager, know that any core technology we choose means something I'm constantly going to have to recruit for or invest hugely in training in for so picking the one with the biggest talent pool is going to very tempting. Even if people don't use it the same way we do, I'll at least be able to ask basic and essential knowledge questions in interviews and externalize some of my training costs.