MAC problems

Today I am running a class on HMC 4.5 This class is running on Hyper-V. we ran into the following and I cannot say I am pleased with this: when you create the first machine on a Hyper-V box through the Hyper-V manager, the MAC address will be always the same, so if you create an environment that is running on Two separate pieces of hardware, You end up with duplicate MAC addresses on multiple machines. the only solution for this is to go to manual MAC addresses on at least One Hyper-V machine.

I hope this is something High on their FIX THIS list.