I may not be the most informed on the subject but I didn't think Ari ben (aviator) was anything more than a time building operation. So your question then is more like, should you go to college or not? I think that's a personal choice, personally I think it's a box checker. Do you have a college degree.... yes. If that is ever a requirement for a job you would have the box checked. If you didn't have enough multi time, that's something that's relatively easy to get.... all it takes is money. Can't buy yourself a college degree in 2 weeks.... At least from a US college. As for changing from Professional Aeronautics to Aeronautical Science, I'm not a riddler so I don't know the difference between those and I'd be willing to bet most non riddles also don't know. It would be my assumption that Aeronautical science then counts the flying as degree requirements, I don't know why that would be better. You can still do the flying as electives and the cost of flying isn't included in tuition so that's a wash.
If I were you, finish the Pro Aero degree and get the ratings. The multi time might very well fall into place while you're sorting other things out.