Pretty sure someones already mentioned that and it got rejected because some worlds can spawn without trees.
The best spawn for a closest border run is assumed to be 32 blocks from the border as found by birj a while back. SpaceByte claimed you can spawn closer but I don't think we ever saw any video proof. I set up a "best case scenario" run by centering myself on the 32nd block from the border and started and stopped timing according to your wr. The best time I got from that was 5.250 but I might have been a bit closer to the border than spawning in a new world.
I also got 5.200 but when I set up everything perfectly and centered myself on the 32nd block from the border, the best time I could get was 5.250
I was originally sus of the run because the fastest time I could get was 5.250 and when I retimed it, I got 5.400. Video title also originally claimed it to be 5.650.
+mod that verified the run is no longer listed as a mod
The rules for reach bedrock say only one mouse button can be left click