Derech Hamelech,
The point is that there is no one absolute derech. There are those here, that think there way is the only way and if you don’t follow there derech you are an oisvarf. The facts are that there are gedolim who attended, allowed people to attend or encouraged people to attend. On the flip side, there are those that said it’s assur. But was is missing from the assur side is the detail on why it is assur. If someone went to one of the gedolim who say college is assur, and told them I want to be a doctor, psychyatrist, actuary, lawer, etc… would they say it’s assur? I’m not so sure they would make a blanket statement that it is assur.
As far a Rav Hutner is concerned, not only did he attend university (I don’t know if he ever got a degree, but he attended at the same time as the Lubavicher Rebbe and Rav Solovechik) I have been told that the reason he was offered the job in Chaim Berlin was because he attended (or got a degree from a) university. It is also known that he wanted to start together with R’Shraga Feivel Mendelowitch a yeshiva college and went as far as getting approved by the state for it, but when R’ Aaron found out and told them he was against it, in defference to him they abandoned the plan. College nowadays in basically a training school, years ago college was a place you went to to study for studying sake. The tshuvas from previous generations may not be relevant as the facts and circumstances have changes as to the nature of the purpose in college. There may still be other issues with attending, but everything needs to be looked at, not just the mere fact that the word college is used.