Whereabouts failures aren't doping failures - they're failures to meet a bureaucratic regimen which assumes all athletes reasonably have predictable presence and/or easy access to internet. This is a comfortable assumption for privileged and middle-class Westerners making these rules, but less obviously so for impoverished citizens of unstable third-world countries, who seem to be often "caught".
Failure to comply with the whereabouts system should be a fatal error in my opinion.
Agree 100%. There is really no valid excuse.