Lol, no. Enjoy your wipes with this "strategy".
Best way we found on our progression kill was 7-7-5-5, boss will enter the 4th black phase around the 40 second mark, stack up near claw, pop hero/lust, chain cd's and nuke him down. It is possible to extend the enrage by 20-30 seconds. Our first ever kill was something like 15 seconds over the enrage, but we did survive until around 35 seconds after enrage on one pull.