If they were stretched by half their length, then the proportions of length to breadth to height would come close to balance.
Yes, she's got quite a low L/B of abt. 5.8, and her B/T of abt. 4.5 is quite high.
But then, ferries, especially those built these days, are usually rather at the brink of those ratios.
The Flender 1976 built sisters TOR BRITANNIA / SCANDINAVIA are still the epitome of elegant ferry designs in my view,
but of course in their original state, before they spoiled their looks like with so many Pax ships in pursuit of SOLAS conformance with all those blisters, sponsons and duck tails.