Enoch is still alive due to a stable time loop, himself: he must have a son with Ishtar in the future, because said son has traveled to the past and saved his life twice. Doesn't change the fact that the loop itself could have been semi-safely circumvented.
basically the idea goes that Rounaut gets sick of being more or less homebound by his amputated leg and decides to pick up either machinist or astrologian to try to fight again from a safe distance.
->Beckett - a promise made. Actually not all that hard to follow through on, since self-defense is one of his few reasons for actually fighting. Still, though...
(ftr when faced with the exact same concept in Awakening my very much peace-loving Warden was all "I should be excited at this idea...but I'm really, truly not."
it's the only one actually suited to his voice and preferred tempo