I think we should be looking at the entire intensive farming industry to really address animal welfare...targeting a very small minority slaughter technique on,y raises questions about the motivation of animal welfare advocates.
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We are or did you miss banning of battery hens, or the pig welfare we have in auk.
Stunning has been compulsory in the uk, since 1933. It is a very easy way to enhance welfare by removing the exceptions currently allied. It is far far easier than changing all the farms for hens, which we managed. Welfare in all areas, grinds forward slowly.
And no it relay doesn't raise questions, unless you are utterly blind to all the other cries for welfare