This is correct. The reason why I say that BLM should be balanced as "selfish" is because non-buffers should not have higher rDPS values than buffers, as otherwise they'd be overpowered (e.g. ShB SAM or BLM in the second half of EW). They can still have similar or higher aDPS/cDPS values, if they happen to be there at a specific balance point.
"Selfish" jobs are already superior to buffers in most content, from dungeons to hard 8-ppl duties because their personal performance is irrelevant from the group's or its size. They should still play into buffs but they won't be affected by others dying or playing poorly compared to buffers with the sole exception of kill time (which they can still benefit from even if the group is not good).
You can also see this in CODCAR due to the size of the arena making buffing complicated or even in normal Alliance raids where the "selfish" jobs are the ones making the most out of the buffs given to them, particularly since you can buff stack there due to the funny website not organizing the Alliance raid data into their usual metrics but just raw DPS.
With the exception of resurrection, jobs are not balanced around their utility. VPR has none (unless we consider Uncoiled Fury to be "utility") whereas MNK has a defensive with an AoE heal attached and a unique ability in Mantra yet both are balanced around the melee/non-rezz caster group. It is also not surprising that the infamous non-healer Ultimate clears tend to bring those DPS jobs with additional healing tools like DNC or RPR.
BLM has a defensive, and they could give it another utility tool if they wanted to without it requiring to reduce its damage.
The "issue" of BLM is that it is (was?) a job that does not fit into the standardized 2-minute bursts as well as others do. Its damage profile is continuous instead of bursty. This would be fine if the amount of buffs or their power was lower, but their strong synergy combined with their multiplicative nature makes most other jobs more suitable at exploiting them. This damage profile also hurts them in encounters with a lot of downtime but can make them good at particular moments where other jobs don't have a lot of burst but still require damage, as is the case in one phase in TOP. It is no surprise then that the developers have kept changing the job, to the dismay of plenty of BLM lovers.