So you don't like the idea of running programs inside the web browser. Big whoop. It's the chosen runtime for the work of this group for exactly one reason: it has managed to achieve a ubiquity that no other platform has succeeded at doing—not even those that made it an explicit goal.
What's more, if you set out to oppose triple scripts on those grounds, you will almost certainly contradict yourself sometime in the not too distant future, maybe even by the end of the day or in the next hour. Let's direct the unstoppable, ever-expanding scope of browsers towards something worthwhile. The triplescripts.org group's pursuit of zero-setup metatooling is worthwhile.