Actually… There is no forcing in a sense and I am sure as always @kofa can explain it better but for the majority of modules DT does not clip or force the data however with DR modules the UI sliders and controls can only impact data in the standard display referred range. So for eg. local contrast or some other modules dragged before the tone mapper won’t clip the data. Some modules will be non linear or use LAB and so moving them to a certain spot in the pipeline can have an impact. Thus the default order takes these things into consideration and tries create the best sequence considering how each preceding module operates…There is an often referred to post that explains this fairly well when the RGB series of modules was introduced…
My phone won’t let me paste the link but I will later …
So basically the tonemappers in DT are generally the transition point to standard display referred space and then modules designed for that space follow after and their controls can act on the data now in that space…
EDIT