Ok, I think I’ve figured out a possible explanation, in lieu of IOI explaining what that ending cutscene is all about.
The Disruptor is in fact dreaming the entire mission, as some on here have suggested, but unlike 47’s fever dreams in the 7DS escalations or Orson’s nightmare for the Halloween escalation, The Disruptor’s inciting event took place so recently that his dream hedges closer to reality. He was having the match with Quinn on the Isle of Sgail, and while there, he heard the talk among the patrons of the Washingtons supposedly being taken out by the legendary Agent 47. Then, he had his match with Quinn, and he got his ass handed to him. He had to be evacuated to GAMA for treatment, and in that time, because his defeat was such a hit to his ego, he dreamt up that it was not Quinn who beat him, but that 47 was contracted to kill him, filled in for Quinn, and that’s why he was beaten. Then he wakes up on the Spider table.
Until we get closure from IOI on how and why The Disruptor managed to achieve by accident what was only ever possible for Mark Faba and survive a serious attempt on his life by 47, this is what I will consider the explanation. It was all a dream of TD and 47 never really went on a mission to kill him. Mystery solved.