The all random mode was tied into the frontpage game options that got comepletely removed as Argonax mode was not aviable in LITE. The frontend got removed from lite as it confused some people (dunno how seemed straight-forward to me) so LITE simply just starts as soon as it loads with all the settings fixed. RE-inserting heroes like the ravagore would make it about the same size as FULL again defeating teh point, LITE was made as a tester for full as the download wa ssmaller it was easier to host, when people generally saw the map they tended to go for full instead, so its really just an introductory map to get people trying the full one.