Yes the context it could provide is immense. As you mentioned, it quickly illustrates the accuracy to your models and can help clients/contractors recognize where/how it fits in context with existing, while helping to avoid having to model everything around your new items to get that context. Been a while since I looked into twinmotion, might have to again. Any software making this a priority to include is worth looking at. Enscape even has added Bim and clashing features but no point cloud support and it surprises me. I always wonder what the roadblock is. Is it something in their program that makes it difficult, or is it simply lack of desire based on lack of requests. If it's lack of requests from current users, it might mean they are missing a rather large audience of users out there where Enscape could expand into and attract.
Once upon a time they had a sort of roadmap upvoting/suggestion system. Point Clouds were one of them for a long time back then.