This is true only IF KataGo is correct in its evaluation (usually, but not always, it can get complicated semeais etc wrong, particularly with the low playouts OGS presumably uses because doing 100,000 playouts for this feature would cost too much compute resource) AND IF both players play don’t make mistakes according to KataGo’s optimal line (much more likely with the fallible humans playing on OGS).
To take frolag’s example from the other post in this new variant passing 3 times made frolag lose. However, had they been playing Go and play continued then there is a non-zero chance his opponent failed to see the necessary teire once the dame were filled, and frolag could have won. I don’t like letting KataGo decide who wins unfinished games to prevent the human players making mistakes and getting a different result from who KataGo predicts would win if it took over and played both colours.
And it’s not just a different score evaluation system, it changes how you should play during the game: are you ahead enough and your opponent has small enough ko threats that you can afford to pass 3 times to try to get the win now and avoid yourself making mistakes later? What are the relative risks of you making that mistake later, vs missing some large ko threats so then you are losing after the passes? It’s a bit like backgammon’s double-or-quits, but on steroids and acid.