It's certainly an option, but they won't be fleet, so the Archon having furious charge from the pain tokens won't make much difference if he fails the roll for the distance. The importance and usefulness of being able to re-roll those dice can't be underestimated! And an Archon plus Incubi will mince pretty much anything they come up against.
I myself like to use both Wracks and Incubi, but I never put the Archon with the Wracks. He needs to go from location to location as quickly as possible, slaughtering everything at each one - use him and whatever he's with for that, then have the Wracks move onto the objective he's cleared out for them. It's great that they're scoring with a haemonculus, but if the Archon is with them and you've got them in your list because they're scoring, you'll end up with him most likely sitting still on an objective or running around by himself whilst they sit still on it. Not ideal! Pick your targets carefully, and your Archon shouldn't struggle to pick up pain tokens.
My other car is a Ravager