Because Alf, hake is frowned upon by many snobby commoner(yet naive) fish eating Brits mate. It is a delicious fish my mum would cook up when we were kids. A very underrated fish in the 70s, albeit an uncommon dinner table fish nowadays because if cost and sparse supply through overfishing. It has since become well out of the budget of the majority of fish lovers.
Why? Because us soft arse Brits governed by the EU have little say in foreign vessels pillaging our waters in a free for all. Factory ships with smaller meshed nets indiscriminately scoop up whatever they can damaging marine ecology and devastating fish stocks. When I say they scoop up everything young fish that will never mature to breed are used in products like processed fisherman's pie, fish paste etc. The rest of the entrails get sent to petfood processing factories, meaning your fish flavour cat food may be affordable, but the fish you feed your family(or like to feed your family) is often out of budget.
Oh and another thing, some of our best seafood is often shipped abroad on ice, hake is a very popular fish on the continent, especially in Spain. But most of it is fuckin' taken from UK waters!
Criminal...
I'm hoping our future government will get tough on illegal fish theft that is currently decimating our waters.