Terrible decisions have cost clubs millions even with VAR. Bruno Fernandes getting a farcical penalty at Villa Park springs to mind and they got top 4 at our expense. PSG’s last minute penalty against Newcastle this season, which knocked them out of Europe.
If it’s subjective, it isn’t worth the hassle. Football has become so much worse since its induction.
It might get more correct decisions but the cons outweigh the pros by about 500%.