You're assuming a freedom of movement between employers that I think is a little bold, and you're coming across as a little flippant of someone's personal situation. I think that's odd and a little demeaning. Plenty of other companies have been sanctioned in the past for wrong-doing, and I think it's somewhat silly to write-off anyone who worked there after the sanctions. "Basic logic and common sense" would lead one to evaluate a candidate based on their individual skills, experiences, and situations - not on an assumption about their character based on where they worked in the past.
I'm being flippant regarding people's flippant dismissal of the pervasive culture of discrimination in their own company? No. No I am not. This is a serious matter. The only thing unserious is the insistence of some that being asked to leave an immoral job is demeaning.
Do you actually think that, just by nature of working there, everyone condones sexual harassment? That's a pretty far-reaching assumption about individual agency. The reality is that it's unserious, and frankly immature, to declare that all those who work at Uber after some arbitrary date are undesirables lacking in basic morality. I won't do that, but you're free to engage in those kinds of preconceptions.