Haha! You are using two ropes, after finding and setting throw lines through two suitable crotches and attaching those to two bridges with two rope runners on two swivels, in every tree! All because you are too lazy to use a lanyard during a cutting operation. Yes, you have proven it can be done but like splicing plant to animal DNA, just because something can be done does not mean it should be.
I have used two ropes and systems many, many times, when the situation called for it and strongly advocate it if it makes sense for the job at hand. Climbing sketchy trees, that can't be trusted to support you or tough angles on awkward or weak limbs, it just makes sense.
Staying safe in the tree industry requires constant thought and the ability to adapt and change when the situation calls for it. Having four locks on a carrabiner gate will not prevent it from failing from misuse, only thought and understanding can do that.