This reminds me of assertions we used to take for granted about DRAM. We used to assume that the contents are lost when you cut the power, but then someone turned a can of cold air on a DIMM. We usually assume that bits are completely independent of each other, but then someone discovered the row hammer. The latter is especially interesting because it only works on newer DIMM technology. Technology details change, and it's hard to predict what the ramifications will be. A little extra caution isn't necessarily a bad thing.
I agree but redoing a wipe isn't extra caution, its just literally repeating the same thing. If that thing is wrong, you're not helping the situation, just wasting time/resources.
Extra caution would be shredding the drive or some other non-wipe method. At work for example, we zero out drives and then those drives get physically destroyed by a vendor.
