You must not have clicked the link. I see it as highly arrogant to think that the Viper was the first car with "X" in the name. ACR-X was not the first car with that moniker.
Honda had this concept in 1984, which evolved into the NS-X:
Pininfarina | Pininfarina Models
Then there is the Acura RS-X, and others. "X" has always been somewhat of a sporty/track version of vehicles, Dodge didn't create this idea. Now, had they called the Corvette an "ACR", then yes I'd say that would be highly stupid. LOL!
Also, the Corvette is a matte metallic white, not anything like what is used on any Viper. Looks very nice in person. With as many colors the Viper came in, saying the Corvette copied the paint job of a Viper just sounds silly. It could have been any color and someone could say the same thing.
Yes, this is a Viper site, but you rarely find people on the Corvette sites bashing Vipers. At least not to the level of participation found here.