A long (long, long) time ago, when I worked in an allied academic field to museums and curating, the suggestion that some mythological figures could be interpreted through the lens of what were (in 90's) known as 'theories of gender' was fairly mainstream - within academic discourse. It would NOT have been good curatology to interpose one of these interpretations between the museum viewer and the object! Whereas the academics might make a career on various waffly papers around these theories. 
I was one of those, though my career never took off and now I feel that the post-modern scales have fallen from my eyes. Museums remain among my favourite places to be. Museum-goers should certainly be invited to think about artefacts more deeply, so I'm not against labelling that comprises more than just a basic description, era, accession number etc. But giving one narrow, not to mention prescriptive, interpretation is not the job of a museum label. Many curators would be horrified at this blatantly biased and agenda-ridden tripe!
I often wonder where I'd have been, had my chosen career in museums ever happened. I think either I'd have been totally brainwashed by this rubbish, or I'd be eating myself up from inside, terrified of speaking out for fear of losing my job. 
I love(d) the Burrell, btw. Some really lovely things in there - I remember the medieval Madonna statues particularly. God knows what they've done with those.