Akamai does not like Krebs exposing out the DDoS attackers, because fear of DDoS is what brings Akamai business. This is a good excuse to try to get rid of Krebs.
That doesn't make sense. Akamai can't convincingly say "We can help [you businesses] with this scary problem of DDoS attacks" when Akamai demonstrably couldn't protect Krebs from a DDoS attack. From a financial perspective (i.e. "This is costing us too much money"), their actions make sense. From a conspiratorial one? Not at all.