I don't like one tricks and don't appreciate having DPS mains in my team that tell me they can't play healer (Zen and Ana are both DPS-orientated healers, it's bullshit, especially when you out-elimination your DPS players as Zen) but I don't support this move by Blizzard. I think it will improve the quality of competitive overall but is not fair on high-SR players that don't have time to invest in learning other characters. I play maybe once a week and personally prefer to flex and have a good hero pool, but if I wanted to spend my once-a-week playing session playing only Mercy, Zen, Torb, whoever, I should be able to.