from the article
The ruling sets a legal precedent which confirms that the Equality Act 2010 protects employees from discrimination not only for their beliefs, but also for expression or manifestation of their beliefs.
that's helpful. I think a lot of the argument has gone 'it's OK for you to have your beliefs but don't you ever actually speak about them or we'll sack you'. aka don't bring your whole self to work
Setting out a “guidance” for reconsideration of this case as well as for similar cases in the future, Mrs Justice Eady says: “First, the foundational nature of the rights must be recognised: “the freedom to manifest belief (religious or otherwise) and to express views relating to that belief are essential rights in any democracy, whether or not the belief in question is popular or mainstream and even if its expression may offend.”