Someone might exploit a loophole but it's not based on where the rows in the database are legally claimed to reside. The tax dodging has two main flavours afact: refusing to domesticate profits so it's stuck in limbo (this is what apple is doing in Ireland) and moving money into structures where people pretend they don't own it (owning offshore companies who own London property (UK MPs do this) or having a subsidiary 'pay' for use of a corporate brand so it's marked as an expense in a high tax jurisdiction and the tax is paid (maybe) in a low tax jurisdiction (Starbucks does this)).

The fund being in the Cayman islands in it's own isn't a tax loophole.