It used to be fine but as alliance lately id have to agree with your statement, atleast on the battlegroup im playing on its a loss every match. Ive been going for the 100 wins achieve for battlemaster and ive had nearly 20 losses in a row (Not even kidding here) And my average BG win ratio is 60%. Been stuck a week at 69 wins. My win ratio for this was close to 60% but has since dropped to like 45% and rapidly lowering.
Edit, for what its worth im about a 1900 rated player in arenas. Not super skilled but i like to consider myself not terrible.