Yes, it has been happening much more often during the past three or four weeks than it ever did before. It happened for three log-ins in a row a couple of days ago.

One time, an "ESO Has Crashed" dialog was displayed, asking what I was doing at the time that the game client crashed. It happened while I was viewing the bank account at Belkarth, Craglorn. No particular key-press or other identifiable input preceded the crash.