I’m familiar with that sort of argument by game theory to support the torazu sanmoku and I respect it as being a valid basis for making a judgement on whether it’s a helpful feature of the rules or not. However, you can’t deny that it’s an example of a ruling made bespoke for a single local position rather than extrapolated directly from the underlying rules. Personally I think that we’re better without it: it complicates the game, making it less minimal and more difficult to understand for players and tournament directors. I’m interested to hear what you think of the torazu gomoku (which in the '49 rules granted Black five points without capturing,) since I’ve read people on Sensei’s Library saying that it doesn’t have the same combinatorial support as its little brother.
And if you support the torazu gomoku ruling then what about “points without capturing” of larger sizes? A torazu of ten or twenty stones?