Not every VA should get royalties. But important characters who are featured throughout the entire game, who's performances help sell games should absolutely be getting royalties and it's bologna that's not industry standard like it is in hollywood.
Same is true of important senior devs, designers and artists on gaming projects. They should also be getting royalties. Instead execs line their wallets with the vast majority of the profits.
Thing is though, VAs are actually unionized and can fight for things like this way easier than devs can. Funniest thing is people are up in arms about getting paid more than what a union says you should get paid right now, imagine what the VAs would be getting paid without the union. It wouldn't be pretty.