At least in the US, there are significant communities of Chinese, Japanese, and Koreans that are part of the broader go community. While it would be nice to appeal to tradition as the way we play, which tradition would you care to pick and choose to the exclusion of others? Pass-stones are a kludge, to be sure, but they do allow for a game that is countable to the satisfaction of players coming from either the area counting or territory counting traditions. I'm highly skeptical that it's better to ignore one group of players for another because someone made a subjective judgement that this tradition is better than that one.
To go off at a tangent first, I personally am not agin AGA rules - I helped the BGA introduce them in the UK - but I'm not their greatest fan either. By choosing them you are discriminating a little against Japanese and Korean players who are used, for example, to treating bent four as dead without the need to play it out, so it is about more than just pass stones. As it happens, my experience is that both Japanese and Chinese players are uncomfortable with AGA-style rules, and indeed most westerners are too, to some degree, judging by typical tournament behaviour where AGA rules are technically in force but virtually no-one takes a blind bit of notice and typically plays under what might be called "traditional" (i.e. Japanese based) rules. I've seen this even at a US Congress. My sense is that something like 95% of players in AGA-rules events I've seen have skipped the pass stones. (I've even come across players who weren't aware that AGA rules were in force, and had they been aware they wouldn't have known what they were.)
Further, it is my experience that, among amateurs, Japanese/Korean players are uncomfortable playing with Chinese rules, but Chinese players are totally comfortable playing with Japanese-style rules. There is a good reason for this - they effectively apply Japanese rules when they are counting mentally during a game. Both the area (territory + stones) and territory-alone concepts are therefore familiar to them. Indeed, the entire corpus of Chinese pros (and Taiwanese pros) routinely plays under Japanese, Korean, Ing and Chinese rules within China, depending on who the sponsor is. There are a very few Korean and Japanese pros who are used to playing under Chinese rules because they take part in events in China, but on the whole JK pros lack the Chinese flexibility. So from that point of view, Japanese/Korean rules, especially the modern version where dame are all played out, would probably be the best option if you had a wide spectrum of players to cater for. That is not saying that Japanese/Korean rules are perfect, just that they lie within the comfort zone of nearly all players, and so next to no-one is being ignored.
But to come back within the circle, my impression is that by "tradition" Dr Straw really meant western tradition, which is Japanese-based to be sure, but is still distinctively western. Using clocks has long been normal in western events, for example, but until recently was alien to Japanese players. We have always used komi even when Japanese pros sometimes did not. We have sometimes used free placement of handicap stones, and Japanese players have even copied us there. But the element that most western adherents of "tradition" cleave to, perhaps, is not rules but the ethos of Japanese go that has been handed down to the west. There is something quixotic in this, of course, but those adherents tend to dislike changes that encourage those who try to win games on rules technicalities, for example.