If you are looking for specific information that can be assessed on the third boss in SOO, I would argue that DPS meters are absolutely valuable. Evidence of this is clear: we are hitting the enrage timer. For the sake of argument, I will be using a single parse for this; unless otherwise specified. A direct link to the parse in question (10 Man Norushen kill): http://www.worldoflogs.com/reports/rt-bhxibfuv8s7s975n/sum/damageDone/?s=16415&e=16822
Facts:
The DPS for this fight is SLIGHTLY skewed because the personal instance (the portals) removes you from the parse while you are inside. My personal damage is going to be higher because I am the one running the WOL client and the data it is still recorded while in the personal instance.
This, however, does not remove the value of a timeline-based parse for this fight. You will note that players flatline once during the fight (unless they die) this happens when someone enters the personal instance. The amount of time spent in the flatline section can be used to assess how well someone is doing in there. If a player is constantly spending the full 60 seconds in the personal instance, they can be singled out for retraining or could be barred from entering and forced to do add duty all fight. This is a clear leadership call that can be made by proper analysis of the data.
Who is killing the adds? Well, that data is here: http://www.worldoflogs.com/reports/rt-bhxibfuv8s7s975n/details/107/?s=16415&e=16822 (Essences only - click the "Damage by Actor" tab and look at the section "Damage taken from") and http://www.worldoflogs.com/reports/rt-bhxibfuv8s7s975n/details/114/?s=16415&e=16822 (Manifestations only - click the "Damage by Actor" tab and look at the section "Damage taken from")
Who is doing subpar DPS? OK. Here is a good way to take that into account that is not AS SKEWED by mechanics. There will still be some variations on this specific fight due to when specific actors enter the portals. Go to WoW Progress and look at the guild: http://www.wowprogress.com/guild/us/skullcrusher/All+That+Rem%C3%A0ins# and go to the bottom and sort by SIM DPS. It has a section that runs a character's profile through SimCraft and produces what is essentially their spreadsheet DPS. Make note that this must be done in a short time after the boss fight because upgrades can inflate the SIM DPS; changing the sample data as a result. My recommendation is to conduct such analysis within 24 hours. For this, I will use two specific characters: Anddrong and Phobia because I previously acquired their permission to post this, so please do not interpret this as an attempt to call anyone out.
SIM DPS
Phobia: 216,782.6 DPS
Anddrong: 213,527.6 DPS
WOL Parse DPS (Parse used: Fallen Protectors 25 Man Kill http://www.worldoflogs.com/reports/rt-rpwcev56wokq0rjq/sum/damageDone/?s=7635&e=8196)
Phobia: 150,938.6 DPS
Anddrong: 181,792.5 DPS
% of Total SIM DPS
Phobia: 69.6% of SIM DPS
Anddrong: 85.1% of SIM DPS
Consider that this data has value because it compares the average of what a player is doing to what they are mathematically capable of. This effectively adjusts the numbers, relative to the mechanics, because everyone is subjected to the same scenario. The exception to this, as mentioned above, is special assignments. The guy babysitting nests on Ji-Kun will obviously be lower than he should be. Norushen is another example of the exception to the rule specifically as a result of the personal instance.
Unfortunately, I do not have the time to pick through all the arguments that have occurred in this thread and provide appropriate responses to them all. I would, however, suggest that leadership take the time to truly understand the analytics that can be gathered from a tool such as WOL and avoid using conjecture to refute scientific data.
If any of you need a hand understanding the data or would like to learn more about some of the advanced features of WOL; let me know and we can set a time to get some learning done.