You peel back the layers too, the more you think about it the worse it gets. Because yes, they know what's about to happen. Implying its a common enough thing to be a consideration for fleet personnel.

If that were true, any fleet engagement should be an absolute rush to obliterate the enemy ships as efficiently and as entirely as possible. Which destroys the entire plot of the film, that being a slow chase scene to wait the resistance out (and that's not even getting into weaponizing hyperspace if this is possible)

Which builds into the scene where Kylo takes his Silencer and two TIEs to destroy the bridge of the Raddus. They succeed in that much but go no further, because Hux states that they 'can't support you this far out'. The supremacy has a crew of over 2 million (ridiculous in itself). And apparently the best they could muster is 2 TIEs and a fancy one to take on their entire opposition. What the hell happened to the first order's fleets in their transition from the Empire? Compare every scene with TIEs in the sequel trilogy to say, Scariff in Rogue one and the absolute swarm that meets the rebel fleet upon arrival. Did they blow all their money on useless mortar firing dreadnoughts? Are TIEs at a premium now that they have gunner seats and breathable air? What's going on? 

The contrivance to get a chase scene to happen entirely contradicts the apparent reason for having it in the first place, to set up they jump scene. That's what happens when your director bases their film 90% on a first draft I suppose.