No. BRs can work even when you do a slow left right left combo. Try it by sending yourself flying in the sky, Sol2 or Sebenco work well for that, and then try any speed while doing the combo. It can work until it's very slow.
The reason it doesn't work is the same as why they don't work in PurE or Pulse. Bad code. :/ I hope they did fix that with the new update coming out this week.