HCV Resistance difference between missing MIDI and low coverage in MIDI

[donkirkby]

In the 28-Sep-2018.M01841 run, there were two runs with problems in the MIDI sample:

• 89682A had low coverage at the end of the MIDI sample. It was reported as a failure in resistance_fail.csv.
• 89674A didn't map anything at all in the MIDI sample. It wasn't reported in resistance_fail.csv.

It seems like 89674A is worse, so why isn't it reported in resistance_fail.csv? Is there any benefit to showing the failures differently from low quality? Chanson said we should always display resistance if we have enough data for a resistance mutation, even when we're missing data at other positions.