[innesireinar]

With the old TDM, especially if you work with music with very high dynamic (soft and loud passages), the dithered mixer plugins are reccomended due to the fact that every TDM plugin truncates the signal from 48bit (those that are double precision) to 24bit and the dither helps to mask the distortion of every truncation. With the new system that works at 32 bit FP I suppose that the dither is not necessary because every truncation will cut the word length of every plugin instantiation down to 32bit (not lower as the TDM does). This mean that the truncate errors will be 256 times lower, in the silence range.
Just my thought.