I don't think he "lied", he just weighed the pros and cons and gave an advice, which may not have been the best. Later as the pros and cons changed, he updated his advice. Did he even claim that "masks don't help stop the virus"? That would've been a lie but I don't think he said anything like that.
You can call it "ulterior motives", I called it "weighing the pros and cons". While the host in your video claims "he lied to us", again he only said "you don't need to wear masks for now", he never claimed they don't work or that they wouldn't help, just that you don't need them yet.
His reason for recommending not wearing masks was "to save PPE capacity for frontline medical workers". Not any of reasons he gave at the time.
This is a definition of ulterior motive.
I'm not making a judgement whether he was right/wrong by giving that advice (which the WHO did as well for the same reasons). Just pointing out that he did lie.
I personally don't like being lied to by people that represent a lot of power (doesn't matter what they're motives are. Lying is used to deceive for ulterior motives). That is just an indicator that I can't trust public facing scientists because the truth is not a priority, rather only the outcome that they desire (whether personally or as a group.) But that's not new.
