Molly, sure. She's established, a world finalist and won the WIC in Glasgow. Gold was always well within her grasp.
But Megan is still a relatively inexperienced athlete - that was only her 3rd ever 10000m. Also, 10000m is a race that lots of athletes don't do that often, so her place at the top of the rankings was always something of a false position. Van Es, for example, has run 10k on the roads quicker than Megan's track PB, but that isn't shown in the PBs at the start of the race. Megan did the right thing, she tried to run the kick out of the other two. She wasn't able to. It happens.