It looks to me like the orange blood could have been a result not of innovation, but out of necessity. Looking at the side by side comparisons, from both this and other episodes, it seems like they just pick the color they are changing and apply it to the entire shot (for example, I noticed that if there were blood edits and the character's mouth was open, the inside of their mouth looked less red than usual). In this episode, it looks like they ran into a problem with Reacoom's hair being too close to the red they were trying to change. They may have tried changing the red to black/brown, but it also messed with Reacoom's hair color, so they had to try something else.
Why do I think this? Observe Tanooki's side by side shot:

Notice how Reacoom's hair looks like a lighter shade of orange in the edited version? It looks close to the color of the edited blood, right? That's why I think they had to change the color of edited blood to something different than their normal practice, because it would have altered Reacoom's hair too noticeably. As for why everyone else has orange blood, too, they probably just did the same thing for everyone in this episode to keep it simpler for the editors. I don't remember if it goes back to dried blood/dirt in the later episodes, or if it stays orange from here on out....
And this has been your completely random observation for the day.