Half Life: Blue Shift Easter Egg - Dr.rosenberg? the Trainer?

I know this may not be the best egg ever but i found it while screwing with blue shift and decided to post it here since no one posted it.

first go to the hazard course and then gett vest blah blah etc.

but when you reach the duck-jump section look at the room of scientists. Theres only 1 guy there and it looks like, Dr.Rosenberg!

ironic? or just a coincidence?