There is too much wrong with this team to pinpoint on just lauri. Almost every player is put in a position outside their strengths. Their defensive strategy is horrendous for a young team, especially in the modern nba, and they can't execute, and they can't shoot from three or make it around the rim. Lauri is the best representation of all of that failure but he is not the only one. Their rotations are also just horrendous, and they will blame it all on porter.
They have had one of the easiest scheduels in the league to date, and have one of the worst records. It is not because they are young. It is year 3 of the rebuild, the coaching is terrible, the talent is not good enough, and they don't develop. And they have not gotten remotely lucky.