It's bad and unbalance for a video game In Table top it's good and it makes senese because it speeds up combat and makes arbitrary balance, that's not balance at all but it works well enough and is something that can remove buffing in a quick and easy way for people to understand and do balancing around.
In the end it just translates to video gaming in a bad way and leaves you with a bunch of spells that never or in best case are rarely used and a bunch of others that are OP as fuck and always get abused.
In a video game format you have lots of better ways to stop and fix all those problems concentration is trying to fix as you are not limited by human conditions.
But what can you do if you make changes 5e "purists" will get upset and say it's not 5e anymore so you have to deal with that crowd and they don't really care if it would make for a better video game. This kinds of things always happen with table top ports where devs port rules just because they are rules.
