My answer is - yes they are.
Deception is available as a part of the MOTM 2000 at SC Compendium. There's also an enhanced version with soundtrack available from EAvatar's Liquidize105 right here.
Both Deception and Resurrection IV are available on Blizzforum. The quality of the triggers in Re:IV is barely decent, but the terrain is supposedly 1:1. You can get an idea of what it's like from this recreation.
The story is considered canon in each case.