Good Zarya’s block Rein’s shatter pretty easily too. So…the only tanks that don’t are Dva/Hamster (I’m not going to stretch to include boops, tho in theory…), who aren’t front line tanks anyways. It’s a odd and objectively wrong complaint.
I always tell people I’m grouped with ‘Rein has shatter, watch out’ and they always go ‘what, how do you know?’…anyone who’s played Rein long enough knows the timing + shatter shuffle almost all Rein’s do. It just takes experience and reinforces you shouldn’t just stand in a direct line behind his shield at all times. Which is GOOD DESIGN!