Comedy relies entirely on interpretation, which is a moveable feast.
I understood that Alf Garnet was a grotesque parody of an ignorant racist, but plenty of people thought he was real, and applauded his views.
More recently, there are plenty of intelligent people who believe that Alan Partridge is a genuine chat show and radio host.
If you start pre-empting interpretations and 'warning' people, then you tend to destroy the point of satirical comedy, which is to make you laugh, and also think, in equal measure.
I have never subscribed to the notion of altering things because 'someone may be offended' - that is simply no way for an adult culture to exist.
Offence is not fatal, and it can be debated and debunked - but only if it is allowed the freedom to be experienced first, and that is a risk inbuilt into every art form that exists.
You cannot start policing art to 'protect' people - it harks back to the pointless killjoy arrogance of people like Mary Whitehouse who sanctimoniously believed that only she and her merry band of fools were beyond 'corruption' and was therefore heaven-sent to 'save' everyone else.
I think we have moved past such stupidity now, let's not allow it to return.