Depends on how you define hard. If you mean it requires skill and ability to get and there is a chance you’ll fail even if you put in the hours, no, it’s not hard to get. Maybe if you define it as requiring a lot of time. Because as long as you keep queueing for battlegrounds you’ll get it eventually. You don’t actually have to win anything or have any responsibility that you can fail.
That said, if you wanna be proud of it then go for it. Rewards in this game really are only worth what they are worth to you.