The IDH classification of tumors which was through sequencing the samples could have been delayed due to Covid. There's many steps in the process which could have resulted in the reality we face today.
It can not matter post datalock.
Once datalock happens, the analysis os of the locked database. Can not go back and review tissue, films or any such.
They can not go back and look at historical controls either. Whatever is in the analysis was locked into the database over 13 months ago.
All that remained to do was crunch numbers And that process would already have been set in stone in detail via the SAP.
If so, then I was right to suspect that data lock was not really data lock because sequencing the samples after October 5, 2020 would involve generating new data post data lock.