But seriously. of course you can disagree on my point, but as @sezare56 correctly states: a sampler is a sampler. There is no thing as a drum sampler.
And what really annoys on mono sampling is loosing the room information of the reverbs.
Sure you can apply the internal (really good obviously) reverb but then you have to use absolutely dry samples.
Having multi outs only in software for me and I think a good portion of producers sets the line in the prosumer segment. Even the OT lacks a good count, but 4 is better than nothing.
Do not get me wrong, the DT is a fine machine, great user interface once understood, top entry to the elektron world. One can do sick stuff with it. But without the possibillity to sample in stereo, it mostly is a better drum computer wirh mono samlping capability.