Because the point of it decidedly isn't sinister? Having someone watching you and learning from you shouldn't be creepy, it should be exactly what people in a high-pressure job should be trying to foster.

Just because someone is watching you doesn't mean they're surveilling you. When I mentor coworkers by letting them watch me do a task, it's not chilling me or oppressing me.

People are downing you because you're making a rather absurd conflation between "they aren't working in total secrecy" and "now it's an oppressive police state"