lightspeed skipping would have worked just fine from a storytelling perspective if there’d been a few seconds of setup as to what it was before he did it, especially since Rey and Poe get in a fight over his even trying it. So obviously it was a “known” thing to those characters - we just needed to have it hinted it was even a thing before he pulled it off. It wouldn’t have taken a lot, and it wouldn’t need to be tied into the plot any more than it already is (which is not at all).
Personally, I don’t have strong feelings one way or another for the concept of lightspeed skipping, but I figured the reason why it’s not used often is because it’s mechanical suicide. I mean, the Falcon is on literal fire when they land. Basically saying it didn’t need much setup because it’s depicted as a cheap and relatively ineffective method to shake off foes. Doesn’t really break the lore to me since I can’t see where the characters in the OT would even try something so silly (imagine how sooner Han and the crew in ESB would had been apprehended if he intentionally pushed the limits of his fragile Hyperdrive). It’s like super speeding in a car; sure you’ll get someplace faster but at a very heavy cost to the engine.