Make The Surrender Option Available At 15 Minutes

Since S6 Riot has been trying to find ways for League games to become quicker with the addition of Rift Herald to push down turrets earlier and the damage amplifier to turrets with drag buff and pretty long death timers. Wouldn't it make more sense then to have the surrender option become available at say 15 minutes rather than 20? I know that higher ELO players in master or challenger would appreciate that since they have to wait so long to get into games in the first place. Any thoughts from the community?
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