Well, if you remember it's all made up people and stories you should be OK. It is not like Nasu and Takeuchi were dropping retcon bombs or whatever, just talking about what they were thinking over the years as content creators.
Some people here have built up powerful beliefs or narratives about their favorite characters without being able to read a lot of stuff surrounding Fate, etc. for over a decade, so if the author says something they didn't believe or expect they might get mad, is what I'm thinking might happen.