It definitely has its place, but also the surrounding area needs to be properly connected to the brutality architecture for it to feel appropriate. The DC metro is my favorite example of brutality architecture - it makes the stations feel impressive and imposing without being grandiose.

City Hall instead just feels domineering as it is so separated from the lives of the people working and living nearby. When I lived downtown, the massive, always empty plaza just served as a barrier, especially in the summer time. Meanwhile Burnett Plaza in Fort Worth (as another example of Brutalism in DFW) feels like a place you'd actually feel comfortable approaching on foot because it is integrated with the surrounding area much better. Same with the Perot Museum (even though it's a different kind of post modern Brutalism), it doesn't feel intimidating to approach, even though it is large and imposing when coming in by foot.

City Hall isn't bad in and of itself, but unless the city actually does anything to make it feel like it's a place to approach then it will always be divisive. Reworking Akard Plaza to be more a community park would be a fantastic start, as would encouraging development around the southern edge of downtown that isn't just the convention center, especially development that encourages pedestrian activity like shops, restaurants, museums, event venues, or little parklets