Please do not mess around with my scrolling when I visit your website. It means my first experience is horrible.
I was going to scroll down to the next section on your page anyway, so there doesn't appear to be any benefit in dictating exactly where I scroll to. Unless you have a very specific reason for overriding the scroll behaviour (eg. an interactive story), it's best to steer clear of it.
Why scrolljack in the first place? There's a reason why every "Show HN" with scrolljacking gets this complaint, and it's because it's extremely annoying. It literally adds nothing to your experience.
(Great idea though, I actually had a similar one myself. I think it's a very nice business model!)