They are cheap and reliable, never had any problems with them, so no reason to switch.

There were reports of several people moving their funds to exchanges during the peak time of the hack, surely some of them would have gone to Kraken, you can't rule it out! It's not like there was time to think about which exchange is idiologically aligned to me!

The price being down is painful but this is usually when the best accumulation happens. The people who stick around through these phases end up ahead when it turns. Are you still buying or waiting for lower?