I don't even see how this is even possible. I've run Foundry some 50 times on NM/HM and have never encountered any of these bugs.
Depends on your group. How fast/slow your DPS is and the speed at which you click the panels on his chamber when it drops. If you click too fast sometimes it wont register the last one and he'll get the damage buff and start 1 shotting people. Seen most of those bugs.
Its kinda funny because all of these bugs were reported by me during beta and several times after the game went live. Great to see they're listening to us