Without knowing the content of the training or the actual intent of the people who decided to pull it, it’s pretty hard to say whether it was malicious compliance, or just plain-old compliance.

However, it got at least one republican’s feathers ruffled (the one who called it malicious is a Republican)

So if they knew it would get that kind of reaction and did it specifically to do so, that would be “malicious”

I could certainly imagine someone in the airforce deciding “You know, Alabama has pretty much nothing to be proud of except for the Tuskegee Airmen. I bet if word gets out that we’re stopping this training, some Alabama politician will make a stink over it, and make us roll it back. Then when they get on our case about other ‘DEI’ training, we can point to this as an example and say ‘well we tried to stop that one and you got butthurt about it, and these are more of the same kind of thing, so either make up your fucking minds or get off our fucking backs and let us do our god damned jobs’”

Again though, without knowing their actual intention it could just be plain ol’ compliance or even just incompetence that led to this.