Intentionally break(?) top8 play/draw rule at PPTQ
To me, it's pretty clear that he broke a rule. Let's have a look at MTR 2.2: In playoff matches, a different play/draw rule is used. In playoff matches, the player that was ranked higher in the Swiss rounds chooses either to play first or to play second in the first game of each match. For the second and subsequent games, the loser of the previous game decides whether to play first in the next game.
This player knew that rule, broke it intentionally in order to gain an advantage, so this seems a pretty clear DQ to me.
For comparison, suppose a player starts to play, his opponent says that he forgot to draw for his turn (because that opponent doesn't know that the player who goes first skips their first draw step), and he accepts this, even though he knows the rules don't allow him to draw a card in his first turn. Seems the same to me.