Not so bad as to have failed with a 100% chance. But failing at 98% chance 5/7 times? failing 7/8 times with an 80% chance followed by failing byregots with a 90% chance... gathering with a 97% chance failing all 4, then 3, then 4, then 2... bringing a grand total of 3/16 gathered successfully with 97% chance...

Of course these are very isolated occurrences to be THAT bad sure... but i've done plenty of counting on my own while lvling gathering in bouts of 10, 100 and 1000 samples at a time to see just how many i fail and they are never anywhere near the success rate it gives.