One of the issues with 5e D&D point buy is minmaxing.
You can put all your points into, say, Strength, Dexterity and Constitution and leave everything else at the base level. Obviously, the resulting muscle moron sucks in a sensibly DMed game, but you aren't supposed to do that.
Thinking: actually this could have been an issue in The Fantasy Trip too. Memo to self: build a bunch of Fantasy Hero characters that are one-sided combat monsters, and a leader that isn't an idiot.
Naturally, I like the D&D point buy system, even though the characters aren't all that compared to what you can create using other methods. I just hate dump stats for most character concepts.