I had previously saved a game while a Colossus was attacking, and due to the save changes I now have some permanent beam impact sites. Oops.
Looking through the support section in an attempt to find the exact patch notes I found some worrying stuff: this huge section, and in particular this page. Compare it to the Warcraft III equivalent, the only relevant page I found is very short.
Any content found to be offensive in nature has no place on Battle.net. Such content can be changed or removed, and the publisher warned or suspended.
Blizzard reserves the right to change/remove any content we deem inappropriate or that violate policy.
Removing it is one thing, but changing it? Seriously?
In playing this game, you will encounter thousands of other players who share different experiences and come from vastly different backgrounds. While certain actions may not bother you, consider the fact that these same actions may be perceived in a completely different manner by those around you.
Hey, maybe Blizzard can introduce a "background lock" so you can only play with people exactly like you! :P (though the severe communications limits kind of do that already.)
Edit: Ha ha, the impact sites ended up in the end cutscene.