Yeah I think it's boss either way but people will moan about anything these days it seems, even a definite article.
It's Anfield, It's red, it will be a nice stand, will be a lovely plaza, and for sorting that out I think those are the important bits.
I'd prefer just Liverpool Football Club too, but The Liverpool Football Club doesn't sound that bad if you pronounce it "thee" rather than "thuh".
Besides I read it as "The one and only Liverpool Football Club" rather than any shite about Everton or being the only club from the City! But interpretation is horses for courses I guess!