Yeah and which convenience Lor'themar would have had in doing that? Like, literally none. And no, those dissenters merely complained about the Blood Elves' allegiances, not the methods chosen to survive, meaning yours is the actual lie.
High Elves survived just fine because the vast majority of them were rangers and they only had to care about themselves. The people in Quel'Thalas needed far more effecient methods to survive and keep fighting the threats besieging their kingdom.