I don't think that's good advice and leads to some very short term thinking. Reading only the stuff that you must in order to not get fired is tantamount to do

I don't think that's good advice and leads to some very short term thinking. Reading only the stuff that you must in order to not get fired is tantamount to doing to bare minimum. Having a sciolistic knowledge about many topics is helpful when coming up with new ideas (and more importantly, knowing where to look when you need to do a deep dive), as well as making you a well-rounded person.