The "corrupted" term is better here because it describes what the article is about: how to avoid security issues with real-world software tools, some of which match true regular expressions and some which match extended pseudo-"regular expressions".
See where the article says, "Faster engines may not support advanced features, most notably backreferences and lookaround assertions."
In a discussion about sucrose, fructose, aspartame, and stevia, you wouldn't tell someone to stop using the term "sweetener" and instead use the narrower and more precise term "sugar". If you did, you'd be advising them to use a word with the wrong meaning.
See where the article says, "Faster engines may not support advanced features, most notably backreferences and lookaround assertions."
In a discussion about sucrose, fructose, aspartame, and stevia, you wouldn't tell someone to stop using the term "sweetener" and instead use the narrower and more precise term "sugar". If you did, you'd be advising them to use a word with the wrong meaning.