In any case, the functionality that Labit currently offers doesn't pose a risk to individuals and research groups. Moreover, many labs host their pages on Wix, WordPress, SquareSpace etc. and their university administration doesn't mind. I think that these are the reasons why there were no objections from administration so far.
And a question for you in return.
How important for you is the ability to have a custom domain for your research group? On a scale from 1 to 10.
Of course, all data hosted on the lab website is usually not sensitive. But I know of a couple of unis where the policy is quite rigid and they simply do not allow any external hosting. Do you have any plans to allow self-hosting? It seems to work quite well for wordpress and ghost...
Can you tell me the name of your university? You can send me an email (rc[at]labit.io) if you would rather not share this information on HN.
And regarding custom domains. We are definitely working on that. It is our top priority right now.