Just reading the link, there are far better keepers out there then Robinson. And while Reina is a every good keeper, he is replaceable.
Is he though? Yes, there are a lot of good keepers out there. But if LFC fail to qualify for the EL who in their right mind will come?
For me, our performances in the Europa League will decide more what happens to us in the summer than the money that FSG claim to have. Next season will absolutely be a building season (what this season was meant to be but we ended up imploding somewhat instead), and that being the case we will find no ready replacement for Reina (which is not to say we won't find someone who will be at Reina's level in 2-3 seasons).
Winning the Europa League was never more important than it is now - the half-arsed efforts against Sparta Prague cannot be repeated.