It will be right but includes all non playing staff, pension contributions and employers NI liabilities. Still will be higher than listed though, I doubt they are even correct for basic salaries they will be plus win bonuses etc too.
Those moaning at eg Fanky will have been as he was here in L1 with a promotion doubling bonus. The house Gus was renting in Leamington was £4k a month and I'm reasonably confident he was on more than reported when he first came.