Resto Druid abuse on Xavius Mythic

Warcraft Logs
1

On Xavius mythic there was an abuse on resto druid.
They abuse Incarnation: Tree of Life
I heard 2 versions how to abuse it:

  1. Before you go into Dream Simulacrum you use Incarnation: Tree of Life and then this buff will be on you until the fight doesn’t end;
  2. Before you go out from Dream Simulacrum you use Incarnation: Tree of Life and then this buff will be on you until the fight doesn’t end.

I’m not a druid, and don’t know right version, but on logs - 2nd version is right.
For example https://www.warcraftlogs.com/reports/fArzGK7R4VxhnQ6a#fight=7&type=auras&source=15&ability=33891
As you can see, resto druid have a buff from ability almost 5 minutes(actually buff lasts 30 second), and he used Incarnation a second before he went out from Dream Simulacrum.

if it’s indeed an abuse do you exclude all logs from ranking?

P.S. This abuse worked before the patch 7.1 goes live. Now it doesn’t work.