True. The only surfactant that is questionable for lawn applications of preemergent herbicides are "stickers" based on resins, polymers or latex. I have heard of such materials used with preemergents, but for bare ground or for application to soil in ag crops. Making something stick to grass blades does not seem logical. On the other hand, using a non ionic wetting agent may enhance action of soil active products in a lawn.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738