Because universities are mostly about class signaling. Peter Thiel talks about it at length.

Turns out that accountability is easier on a campus than remotely.

They are starting to. GaTech's OSMCS program cost (~$8k total) a fraction of the on campus (~$30k year in-state). With any entrenched system it takes a while to see change. Especially something like Education that is afraid of change and is very slow to change existing ways.

I even wonder if much will change with colleges and higher education by the time I have kids and they then are college age. A lot will change from now until ~20 years when my potential kids will be college bound. However, I'll definitely be looking at biggest potential on ROI for tuition costs etc.

Because they don't have a sales team.