Kind of.

Mostly yes. As others have written, it involved some money issues. There were also problems with logistics and agriculture, Rome had an absurdly high population for that time. That stuff just has to be managed and managed well.

And also you had some external factors.

And also the religious shift from the old greek gods to christianity, were suddenly a whole bunch of stuff was “against god” the way you would think it is now. It is unclear how much knowledge was lost and exactly why, but the facts remain that you have relatively skilled military doctors in one century and then that disappearing into thin air in the next.

The thing you can observe at the moment, the question of loyalty from universities, into giving positions to loyal or just compliant people over skilled people is roughly the same process.