Discovery, as a series, has thus far amped-up technology beyond what we saw in the original series. Personally, I reached a point where canon issues stopped mattering for me. I don't care what they do with canon, one way or the other. For this topic, the higher level of technology comes into play. I forget where in Trek, over the years, that the concept originated, but it makes sense in-universe: transporter-based surgery. With that method available as a tool, the Klingons could have taken Voq and Ash and scanned them, mapped them, and merged them....at least to take care of the biological part of the equation. Seems like that would have eliminated all of the complex and problematic issues of physically breaking bones and paring down, etc, etc. Tuvix, from Voyager, is somewhat of a precedent, albeit not a deliberate one. The interesting question arises: would Klingons choose to go that route, if it was an option? If the....easy way happened to be a better way, that would make Voq more easily pass for human and eliminate issues arising from the trauma of the procedure that might give the game away, would the Klingon code of honor allow it? Or would the code demand that a Klingon show strength at all times, making 'the hard way' the only way? Klingons have often been characterized in such a way as to suggest that they are quite one-dimensional and not all that capable of patience, subtlety, setting things in place in such a way as to look to what is best in the long-term, etc. Are Klingons really the 'bull in the China shop' that just rages ahead, with no capacity to calmly reason things out, even when it is to their own advantage to handle things that way? Has there been a shift, since the original series, that has made the average Klingon more violent and possessing of less reasoning power? Kor had guile. Kruge screamed "We are Klingons!" Did the writers bring about the Voq/Ash surgery in the manner it was portrayed simply to amp-up the drama beyond what a less harsh tranporter-based method might have produced? Or do they believe that it is Klingon nature and part of their code to do everything in the harshest way possible?