Considering these failures have been over the course of 1000+ dives there is no jinx here.
Flood was user error, don't assemble your kit on 3 hours sleep. The hot shoe was also user error, a drop of salt water from hair. The circuit board was from corrosion from salty moist tropical air, the card read wore out and the strobe was 12 years old.
I guess if I dove less my equipment would last longer