The difference is that in 2016 only nations with two individual gymnasts in the top 10 were allowed to send both gymnasts to the Olympics. If this rule were still in place, we would have and with two gymnasts; and would lose one quota, while and would be guaranteed one quota (and also, considering the host nation quota reallocation). This would have been a lot better, in my opinion, for the sport.
I believe the only sport with a specific score for artistic impression is artistic swimming. Not sure if equestrian (dressage) has it, and diving is completely crazy with its scoring system. In rhythmic gymnastics there are deductions related to artistic performance, but these are not exactly deal-breakers if the overall execution and, especially, difficulty, are on point. In artistic gymnastics there are also deductions related to artistic performance, but only in a couple of events: floor and beam. And, once again, if execution and difficulty are good enough, artistic deductions are not a big deal (the American gymnasts have mostly bad artistic performances in my opinion, but they still win gold).