You mean "integrative" therapy? This is the first time I hear of such approach. I googled it and here is the website explaining it What is Integrative Psychotherapy?

I just skimmed through it. Sounds sensible on the surface, but, in practice, this seems like a very lofty goal. I am not sure how it can be achieved, especially if it's done by just one therapist, because it requires a training in many different modalities. Also, if they do all that stuff simultaneously, this can be way too overwhelming. There is a limit of how much we can process at each given time period. If you are pushing it in all directions, this could be more harmful than helpful. But, again, I know nothing about this approach, so I certainly can't give an educated opinion about it.