Why give the ability to lockout classes for Raids?

[Kaimishi]

99th percentile, all bosses Sigmascape savage. BLM is #1.
Next.

Not on o5s, lol you didn't even look. Besides nobody here said that blm is not the top individual dps. Have you read the conversation? Or maybe you're not familiar with statistics hence you do not know what percentile mean. I'll then repeat in the most simple way so that you get the point aswell. The data show that unless blm are really skilled they won't do as much dps as a smn - at the same skill level.

You can see it for yourself, just select other percentiles, it's not that complicated. On o7s smn is top dps on 80th and lower percentiles. It's only by the 90th that blm becomes top dps. Which means that a blm achieving 80% of performance will have a lower dps than a smn at 80%. But a blm at 90% will outdps a smn at 90%. For the reference being at 80% means that you are among the best 20% players of a class on a specific fight.