No I don't think every single mistake should follow you forever. And it's not fair to judge a person by their worst action.
But a sincere apology is humble and expects nothing in return. There is nothing in this piece to indicate that his apologies stemmed from anything other than damage control for his social and professional standing.
From the article:
> Because of my sometimes-controversial online image (mostly due to my let’s-be-arrogant-to-hide-my-insecurity bravado of my younger years that got me into this mess in the first place)
Please.