Hot Wheels never ditched Muscle. They just branched out a bit more than they did in the 2000’s. And if the 2000’s were the Golden Age of Hot Wheels Muscle, then there is no reason Hot Wheels can’t draw from it whenever they need to.
Hot Wheels did a TON of Muscle Cars in the 2000’s. 2009 for example might have marked the debut of JDM with the Datsun 510, but that little pegwarmer-that-could sat while muscle car after muscle car came and went. Look it up, there were some amazing Muscle Cars that debuted in 2009. And some just emerged in the new American Steel Walmart-exclusive set.
Lack of Mopar is odd, but the set is great. An all-timer for me, the Gran Torino, is in there, as is a plethora of other classics. I found the set in Page, Arizona while on my holiday travels, and of course did a video: