I don't get why people are saying 25. Did you expect her to make dance pop or something?

That's just the kind of music she does, and it always has been. 21 smashed out of nowhere, unexpectedly, it didn't mean she needed to change her sound.
Same with people saying "all Taylor albums". Speak Now was a risk considering she decided to not use any cowriters and she wrote it all herself, and included some songs like "Mean" which were a lot more folky/country than what she had done before. Then to crossover to Pop, risking alienating her fanbase.