Given that I've heard lots of talk of between 40-60 Captains already leaving or in the process of leaving EK to KAL, this doesn't come as a surprise.
Why would you not target an airline where the highly experienced, type rated, well trained Captains are being worked to death...give them a reasonable roster, a home basing, and a reasonable salary, and it's easy pickings.
Meanwhile, EK is busy replacing its most experienced crew with first officers and captains whose experience is limited to say the least. The average experience level in both seats in the EK cockpit has plunged in the last year or so.