What a strange issue to raise. Others have covered the popularity of SM's so I'll add nothing more about that, but as for the "2 points" less comment - Eh? Just what? . .
Yes the Eldar dex is old. Yes it may, in fact almost certainly does, have inconsistencies with points values. So what?
That issue has almost everything to do with its age rather than its race.
If, as you say, all SM armies are OP because they get more love (yes, the paraphrasing is mine there), then within a short period of time, all, or most Xeno's races would be squatted, because fewer people would play/buy them.
Tau just got blistering sales to the point of stock shortages.
Yet SoB and BT haven't seen much favouratism in a long, long time.
Frankly mate, your argument has some serious flaws.
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