Yeah, BA needs lot of documentation skills and related work. Don't jump on particular field/technology simply because 'your friend got job in it' or 'they say it is good..'. Analyze yourself - do you enjoy writing codes? any past experience? your interest? or how is the soft skills - e.g. spoken, documentation, personality (dealing/managing people).. and decide accordingly...carefully.

It is not difficult to switch technology in future (and one should be ready for that specially in such volatile job market), but that needs lots of re-organizing mindset and learning.

Learn what interests you.. but also know the scope and future of that technology before jumping into it.