I disagree.  Charming would become safer, but you'd pay a price for 
it.  You would be burning through mana at a faster rate, ensuring you 
were OOM MUCH sooner (recharming every 10 seconds instead of 15).  
It's also not fool proof, resists or early breaks would be a problem 
because you'd have to get into command range to direct your pet.  The 
only way to really combat resists or early breaks would be to recharm 
even sooner, which would further speed up mana burn.
Also, I believe all other forms of charm are refreshable AND Bard 
charm is refreshable on PVP servers.  Doesn't seem overpowering in 
the least to me.
Darkfox
Xegony
 > Charm would be WAYYYYY overpowered then.  As is its extremly 
 
powerful, with the only downside being the beating you take between 
charms...