Even on the cheap end of estimates at 250k/each, that's still 10 million in hardware alone, not to mention launch costs, opportunity cost of delaying operations, etc.
But really, that's neither here nor there, the point of the comment is that a combination of an unexpected solar storm and the operations procedures followed for dealing with them lead to a possibly unnecessary loss of satellites. Just because they have more doesn't mean they're happy about losing out on millions of dollars of hardware.