Some are forgetting how risk in technology works: No technology is designed or operated without flaws; that's an absurd approach and impossible to implement.

To reduce negative outcomes, we use risk management: assessing the likely lifetime cost of the flaw, and taking cost-effective measures to reduce the risk to an acceptable level. As a familiar example, redundant mass storage drives are much more cost-effective than high-reliability mass storage drives.

They do mention that the DC10 (this plane's predecessor) was decommissioned for similar issues.