It seems to me that they are weasel words. They are trying to do two things at once. On the one hand, they are trying to suggest to devout Catholic parents that the school is a Catholic School. On the other, they are trying to suggest to parents who are not so keen on the Catholic Faith that religion won't be shoved down their children's throats.
It seems to me that they indicate a retreat from the mission of a Catholic School, which by definition must be to educate their pupils to be saints: to teach them the Faith, in ways which accord with the Faith, and to educate them more broadly to discover and fulfil their vocations.
If that is the primary purpose of a Catholic School, which I take to be axiomatic, then it is hard to see why showing children videos which are occasions of sin, examples of immorality and contain obscene and blasphemous language can be considered 'appropriate' (or as an unreconstructed traditionally minded Catholic like me would say, right). See my previous post for the details.
So consider a school which not only shows such videos, but defends the practice and then tries scare tactics ("For security reasons we advise you not to access the website as we believe that it could compromise your account") to stop parents finding out what is going on. Reflect on that remarkable sentence for a second. It is the only place on the front page of their www site where they believe anything - and it is patently rubbish (and I suspect that they know that: the phrase 'terminological inexactitude' springs to mind). Yet they profess to believe it, while they express no Catholic belief at all: but, of course, the school has a "strong Catholic ethos."