I for one have been collecting data since the CLS event for when a single shard or gear is required and the case when zero of the target amount is collected.
Summary of 637 shards when 1 away from completing a star level:
Assumption:
Using a single sim until the condition of missing 1 shard is void.
Data is compared against 33.33% drop rate.
Data is compared against recorded shard drop rates per node.
Chi squared model is used to prove occurrences of drop rate changes under known conditions.
Result:
Dramatic decrease to 3.74% given the case before the sim. Original shard drop rates could be modeled under a Gaussian curve. Mean was 32.97+\-0.56%. Std Dev was +\-4.82%.
Being more than 5 standard deviations away from the mean when under these conditions is suspicious.
A similar result for gear is only 4 standard deviations away from the population mean. More confidence in the gear data is warranted due to a data population size of 2, 528.
Conclusion: More data needs to be recorded.