Lord Revan wrote:while no longer canon, the Medstar dualogy explained that Jedi being limited to just their Lightsabers is in fact intentional to limit their options to end a situation violently. Basically since a Jedi is limited to his/her saber and force powers they'll be less likely to just blast everyone and call it a day or at least that's how the Order thinks and yes a stun blaster is a violent option even if it's designed to be a non leathal one (though not harmless).
Makes sense to some degree. Think about tasers. Non-lethal? Well, they're not designed to be, but they can kill people.
Getting hit by a stun bolt doesn't mean you'll survive. There could be unexpected interactions with prosthetic devices, or you could just end up taking a lethal injury as a result of the fall.
If you have a weapon you know is lethal or will likely do permanent, serious damage, how likely are you to use it for trivial reasons? You know you'll have a good chance of killing him, so it's better to look for an alternative.
On the other hand, if you have a weapon that is supposed to be safe, how likely are you to use it? "Enh, he'll probably be fine."
Doesn't make it right, of course. The with all their supposed discipline, you'd think that they would know to use restraint even with a "safe" weapon, but also having the option open for cases where a non-violent won't work but a less dangerous one could still potentially resolve the situation . But nobody is arguing that the Jedi Order always makes the best decisions.
Then again, if everyone knew the Jedi preferred to use stun weapons, they might be more likely to interfere, thinking themselves to be safe if things go wrong. Knowing that the Jedi only use lethal weapons would be a deterrent.
Later...