So? Reagan sure did not consider himself libertarian, he was very clear that he was a conservative, even when he was campaigning to win the libertarian support in his 1975 interview with libertarians, he made nice with an opening statement on economics and commonality, and then proceeded to gently distance himself from them and their liberal aspects.
The best year that the libertarians have ever had, was when they ran to defeat Reagan in 1980.
Libs here often claim Reagan was a lib or that he supported libertarianism by taking one sentence out of context from a speech in 1975. I always challenge them to post the full context. They don’t.