If you or I lie to the court, it is perjury. When it is the FBI, who are granted an additional level of professional authority and trust in their testimony 'because reasons' (even though no testimony should automatically be elevated over other) it's just harmless 'errors made in statements by FBI examiners' as phrased in this article. Having gone through the system, it's all lies. Let's start with plea agreements. Yo…
I generally agree with you. The fact some of these citizens people were likely incorrectly executed, and others died in prison, based on bad science makes this depressing to read.
However, I would factor in intent and knowledge on the part of lab workers and experts when demanding penalties for their action.
If they intentionally lied to support a case, 100% they should have a sentence at least equal to and preferably greater than the person they are essentially framing. However, if they are just using equipment as trained, reading results as trained, and had no I'll intent? I don't think it makes the world better to throw them in jail.