With how dynamic the changes to THM have been compared to other classes the devs should sincerly take the time to consider how some who may have only leveled that class may feel about it. There's a reason why there was an argument for a long time as to what class would be WHM and which would be BLM or why not RDM instead of BLM. When you consider everything Conjurer had the makings of both a WHM and a BLM because of their access to all elemental magic as well as access to curative and buffing spells. THM on the otherhand was more of a healer/enfeebler with DD magic.

When it was noted that CON would be WHM and THM would be BLM it was pretty clear that the changes would be pretty dynamic. Now that we've seen those changes I think it's fair to say that THM can't even be considered THM anymore, it's not what the original design of THM is. Other classes still retain their identity but THM was pretty much killed and then COnjurer created a twin brother of itself and shared it's abilities with it.

In that essence I honestly don't think it's unfair to request those who have leveled x mage job to switch to another because that's the role they wanted to play. I'm sure there are some Con only that wanted to be more BLM like but now they've lost a big list of them to THM. It would be a simple remedy just to have an NPC in each town, it could easily be a Conjurerer and THM NPC standing next to one another speaking of how their methods have changed and if their are any of their bretherens that feel cheated they are able to perform a ritual to swap knowledge of their arts from one class to another. Of course because of the stress this spell has on it's target it can only be performed once so choose wisely before confirming to this change. Then a warning message would pop up such as -You can only perform this request once, You may not be on Con/THM at the time of change and must equip an Arm from any other class, Once the change has taken place you will no longer have knowledge of the abilities you have learned from that level- Then after confirming the levels swap and everybody is happy.


But ya, perhaps some news will be mentioned as to how they will handle the extreme changes made, perhaps they'll just apologize to those who thought they would play x role but are now unable to but who knows lol.