They're not making reference to your english, rather to the fact that your question as stated simply can not be answered here. You have to go and try it out yourself to determine if you can do it.
Can a Paladin gather up 6 mobs and kill them all with no trouble? It depends. And since we have no other info to go on, that is the only answer that can be given. Paladins can AOE kill things yes, but there are more variables that determine how well this can be done: gear, elites or non-elites, mob type, getting jumped by those of the opposing faction, etc..