I can only think of one activity where tongue endurance is important, and I guess it's good that runners come out ahead in that department.
A doctor named Mike Ilkes published a book claiming that snoring is mostly caused by weak muscles in the tongue, soft palate, and lower throat, and can be cured through simple exercise.
I can't vouch for the veracity of his claims yet, but ask me again in a few months…
https://www.telegraph.co.uk/health-fitness/body/simple-worko...
I'm assuming you're not trying to move a heavy weight, so the runners probably take an advantage.