There is absolutely no argument to be made for slower polling. To what degree it might help or not help players is another conversation. So, please feel free to deflect with the back and forth about impact (which I think we all know would vary greatly from player to player)... while ignoring the fundamental point that their methods are outdated and perform at an inferior level to a much older game.
What I do think is fair to claim is that "that other" company thought the impact of faster polling to be worth the investment to improve their rates.
Yes, it is true that it might impact people more in that other game, since there might be fewer people suffering because of that companies badly placed datacenters that cause terrible data transmission.... but I am not sure why that would be the fault of players, either. To be fair - when that other game launched and there was massive lag, you had the same kind of people blaming it on people's internet connections and routing... but miraculously, the other company still managed to fix things....