I'd argue that if they can get things right and devoid of errors as far as possible in as many games as possible they should go for that and that all teams know the regulations in advance now - it is just that it's 'VAR will be used at any match at a PL ground' rather than 'VAR will be used at the final'.
On a similar theme, the Carabao Cup Final yesterday had extra-time built-in before a potential penalty shoot-out, which isn't the case in earlier rounds.