i guess one of the questions is how quick cognitive decline sets it and how it influences system stability (we have big system with very high sla due to nature of system and it takes some serious cognitive abilities to reason about it operation).
if todays productivity is traded for longer term stability, i am not sure that it's a risk they would like to take
Companies don't own employees: workers can leave at any time.
Thus protecting employees productivity in the long run doesn't necessarily help the company. (Unless you explicitly set up contracts that help there, or there are strong social norms in your place around this.)
if todays productivity is traded for longer term stability, i am not sure that it's a risk they would like to take