You might make the decision that the risk is worth taking, because the potential of the new editorial direction is much higher — which is a perfectly valid decision. (romanceuniversity.org)
In the IBM Decision the tests for employers making valid decisions under employment and pensions law are reviewed by the Appeal Court. (wedlakebell.com)
And No (see the rest of my answer), the EU could not make it more difficult for the UK to Brexit (this is an unilateral legal and valid decision from a member). (politics.stackexchange.com)