I suppose the concern is if Liverpool have to complete all their fixtures but win the league in their first or second match, they will possibly use a few fringe players in the remaining games. That might mean that theyll want to keep him there.
I don't think Ben Woodburn is anywhere near the thoughts for their 1st team, they have youngsters they used in the Cups like Curtis Jones and the lad they signed from Fulham (+ others) ahead of him now. Woodburn is really playing for a career at another club imo.