I would agree with this somewhat. I think giving an ATTENTIVE enchanter a quick option to not receive damage on a charm break would be handy for both the enchanter and the group. When I was doing it, the tank would have to grab agro of the mob in order for me to be able to recharm successfully.
Another option would be adding more durability to runes. Since the reagent cost hasnt been removed from them and they are still based on Kunark content, the runes get eaten in 1-2 hits which doesn't give you the time you need to recharm as well.
Enchanter broke? Nope. Could use a tweak? Yup.