Flex queue, stomp or get stomped

I didn't know it was possible, but apparently you can be down 15.6k gold in 18 minutes. http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2387601521/47022294?tab=overview The funny thing is that the mmr adjustments after this game is busted, I still got a healthy +23 lp for this freelo game when a stomp this hard is normally +14 lp.

Maybe riot needs to make their matchmaking a little bit better than putting random people on each team?