Is it really your considered opinion that "lugging a BRS around" is just a waste of fuel?
For me yes in a SEP.
The only situation I would want it and I haven't been trained to deal with is an in flight structural failure.
And the chances of that are so low on a youngish certified aircraft its a risk I am willing to take.
Apart from that give me the additional payload please.
And in flight failure of the magenta line will kill commercial pilots never mind ppl's and its something the industry is looking to solve.