So, wanted to talk about the ability score when we make our character a bit, and am just wondering why the devs decided to go with point buy instead of standard array or random rolls?
Because there is no DM to limit you or tailor the experience to your character.
Yes, you can create overpowered characters, you can create underpowered. As long as you know what you are doing and understand consequences, it’s fine I suppose, but it’s bad thing to have - you don’t know what game s balanced around, and you are essentially asked to set up your difficulty level, without understanding what is what.
Pointbuy system, means some resemblance of predictability, and that leads to better, more balanced design.
I have nothing against adding point buy as an option though. If Larian still plans to add it later on, it makes sense to only have point buy for now - balance is something they are actively looking at, so having players running with varying level of available power would be more confusing then helpful.