Well I thought I'd just jump in and add my opinion because I can, lol.
I can see where both sides are coming from, and I don't think there's a right or wrong option, they both just have slightly different results.
It's definitely true, and a very good point that "if you supervise the methods, you can't hold people accountable for the results". But it's also true that this is a pretty unique situation.
Of course, everyone should be able to make a film without a gun, but it's also true that many films contain triggers for many people even if they're G rated.
I think the course of action with the least fallout would be pointing out that, especially in Christchurch, it would be advisable for teams to ensure that whatever their story (guns or no guns) they're sensitive about the events of March 15. Then let people know that films with gun violence (or any other related content deemed insensitive e.g. white supremacy) may be censored higher than usual and grouped and shown together at the start or something so people can choose to sit them out then watch the rest and awards in one go.
Someone who has been directly affected by the shooting may be entering 48 hours, they may have a moving story to tell in that time, it may be a form of healing for them as so much art is for people.
Films are designed to make people feel stuff, and I think just advising people to be sensitive specifically about that event and that screenings will also be exercising discretion over how films are played, is a way of not having a big backlash that would come from a ban, and keep things open enough.
Having said that, people are generally more receptive of things they have input in, so there would be no harm putting it out there to the people to say would they support the exclusion of guns in films this year in solidarity with Chch, or comment for other solutions?
Just some thoughts.
2017: "ESP" - Alien Movie - Pastafarian Productions (Regional Finalist)
2016: "The War on Error" - Cat & Mouse - Pastafarian Productions (Regional Finalist)
2015: "Us... But Mainly You" - Black Comedy - Pastafarian Productions (Regional Finalist)
2014: "Sphere" - Horror - Pastafarian Productions (Regional Finalist)
2008: "I Adore" - Drama - Conspiracion de las Palomitas
2007: "The Hazel Princess" - Fairytale - Conspiracion de las Palomitas
2006: "All Ur <3 R Belong 2 Me" - Romance - Popcorn Conspiracy