Why is there no Blitz normals?

Returning after 7 years—why aren’t normal BGs just Blitz? Rated Blitz now feels like normal BGs did when WoW had a much larger player base (kind of chill, high volatility, huge difference between players in same elo but you win about 50% of the games).

Meanwhile, normal BGs feel like random arena skirmishes queuing into premade 3s.

If Blizzard wants Blitz to feel competitive, they should offer a non-rated version so players that wants to learn in a relaxed environment can do so.

With how low PvP participation is, how many would really riot and unsub if Blizzard just replaced normal BGs with a non-rated Blitz, enforcing the same rules?