I kind of like the mocking tone of Luke talking about laser swords, and it’s time for the Jedi to end.
The only real dumb line to me is kill the past. But Kylo is Sith wannabe, so it does make sense.
As for Rose line about winning through love and not hate, it comes from an idealist. A woman who lost her sister. A woman who lost her family fighting the first order. I don’t hate it as much as people reacted to it.