When considering the 'difficulty' of a new raid, please don't add 'challenge' mechanisms that involve arcade game sequences or require super fine timing. A lot of people who play DDO are not living in the USA, so our latency/ping/lag or whatever you want to call it, is going to be in the 200's or 300's, which sort of puts us a couple of seconds behind real time.
Having to respond to visual cues to an event thatls already happened on the server 2 seconds ago by the time we see it, where failure means dying/failing/falling in the trap/not being able to make the jump/dodge the air jet/time the tiles is a frustrating game mechanic to have to deal with when you're not local to the server and not getting sub 100 pings.
Please consider this when designing future quests and raids.