Last season we are second lowest xg conceded from set pieces 7.5, and third lowest actual goals conceded 8. The season we are top of both tables of lowest goals conceded from set pieces 1.9 xg, 0 actual. Although we top both tables last and this season for penalties conceded. All figures provided by FOTMOB.
I assume KA is happy to concede the odd penalty defending set pieces in the overall context of defending set pieces, although the conceding of penalties metric in general is one we probably need to improve upon.