The fan shrouds likely would have been fine. The hot spot on electronics is generally very localised to the chips and drops off sharply as you get further from them. I've printed a 10" home server rack out of PLA which is warm and under constant load, and it's been running for around a year now with no deformation.

A good rule of thumb is if touching it would cause burns, it's too hot for PLA, otherwise it's likely ok.