It isn't a huge bitrate. The current standard goes almost three times higher.i seriously doubt someone will use that mounstrocity of bitrate to the mass market.
100mbps would make the file MUCH larger. 100mbps*122(seconds duration)/8=1525mb. This file is not 1525mb.in resume is a good reference not a must, for now. and that now could be quite far in time cuz i really cant see the difference between 1080p and 1080p 100mbit bitrate in my 1080p led 120hz tv, dunno maybe if thaters move 500" led screen maybe but for normal market 1080p is here to stay for many years.