Look at it from this perspective...
Educational IT works off a budget, so they have limited spending and limited staff. They have large user base (sometimes up to 10,000 or more) and have to deal with security issues, ie Windows Operating Systems.
In the case where you have so many log ins, they should synchronize their LDAP so that all authentication methods point back to your LDAP credentials and they should secure it by issuing kerberos tickets for each user.
Easily said, hard to get done, only so much time and you can't really take servers down during the semester, that is just going to piss off a lot of people. Also, you can't rely on the user base to always have the latest security patches, and that is how self propagating worms and viruses crash whole giant networks.
It is a complete catch 22. You can't secure the network and have a flawless end user experience unless you spend the money for the staff to make it happen and the money for the right technology. Most likely they have a skeleton crew running your network back end and they only have time to just make it work, and are fixing problems every where else left and right and that doesn't give them the time to make the end user experience awesome.
Been there done that, still doing it, and it sucks for both parties, both IT and the end user.