It's a hideous garment, no matter what size the model is. There is nothing nice about it whatsoever - the neckline, the colour, the sleeves.
I lived through the 70's and there was some fun fashions - halter backs, funky platform and wedge shoes, disco trousers, the whole cheesecloth
and long floaty skirts look, denim, but this dress just epitomises all the crapness of the 70's.
I think the whole of the high street fashion stores are going to take a bit of a hit this year, tbh. Only people who are really hardcore into fashion are going to buy it, not casual buyers.