The question now should be:
can Perez fight for the title against Max until the end of the season?
The question will not be whether Perez can fight for the title, but is Perez allowed to fight for the title at all from the team or does Verstappen at RedBull have too much influence in the meantime? Normally there has rarely been a team order at RedBull, but you never know.
In any case, it doesn't look like RedBull can really threaten the other teams in the long term.