You mean the older spelling convention uses -óa while the newer one uses -oá. Both are correct and acceptable. Another example is Mỹ vs Mĩ.
What does it mean to introduce a course? I can introduce myself to a person, but not a subject of study. Unless it's trying to say something about it being an introductory course? It's a bit of a stretch but I can't think of anything else.
I interpreted that as professors wanting to introduce a new course to a program in their university. That's so specific though. I agree with you that it's a bit of a stretch.