Ah. Yeah, I'm not suggesting that a projectile should just get cut off during flight.
Other exploits exist, sure, but this isn't about them. Also, my argument is that those other exploits are not as reliable as this one is.
With maxRange=1, players were supposed to stand in melee range, and meleeDodge was supposed to come in effect. Note that, in XPZ, weapons with maxRange=1 usually have powerRangeThreshold=2. I assume that's because, if powerRangeThreshold was 1, diagonal attack damage would be reduced.