Most, if not all, new boards have the serial port speed set to 115200 by default. The default speed of 9600 is just a headache for their users, especially at the installation stage, since the config of a livecd cannot be altered.
We need input from users of older boards that do not support 115200 to see how common they still are though.
The plan is to make the change in current, and address the needs of users of older boards, should they arise.