Game Mechanics: AoE spells should only hit limited targets until September 1999 patch era

[DMN]

1. Pre-kunark I never saw a bard kiting more than 3-4 mobs.
2. Pre-kunark I never saw a single bard talking about swarm kiting for than 3-4 mobs either
3. I kept close track of the first level 50s on most servers and don't ever recall a bard being first. (was virtually always a necro or a druid, or something like a "guild cleric" being played 24-7 by 3-4 different people.)
4. The more knowledgeable bards did use a much more complicated way to get exp fast on a bard, which involved kiting 3-4 mobs and mixing up charming and having them beat each other, similar to how necro/enchanters charm-kill stuff. Why would they resort to this much more complicated scheme if they could simply swarm kite?