There's just very little chatter on the JP forums compared to here, and they're much more organized with their board and topic usage (we have more than 10x the number of threads in nearly every board than they do), and the healer changes discussion is primarily focused on the same thread they've been using for the last 4 years. A lot of the topics are more focused on things like custom emotes, QoL suggestions, how AST should use their cards, SCH's lack of damage, and worry over Rescue being abused.
The one thread where they talk about it (http://forum.square-enix.com/ffxiv/t...83%83%E3%83%89), doesn't have a ton in it (only 10 pages of SB discussion on many different topics). This thread here, for example, is already 10x bigger than that. A few people mention primarily that WHM looks uninteresting, but not "broken" and "dead" like the NA side suggests. One of their biggest complaints I see more often is the disparate number of skill difference between the healers, how WHM has less skills than the other 2 overall. Some people sad that they don't have stoneskin (and how that affects lower level dungeons). Even more conversation dedicated to talking about the WHM Barrier skill, trying to figure out its usage and how many lilies it costs and whether or not it should buff based on how many lilies get used up by it (because it currently uses all of them but doesn't change potency based on how many get used, and 15% is low), and how it'll interact with barriers from other jobs. Some of them are quite excited at the prospect of building crit WHM and becoming "super fast" healers with all the CD reductions. Also lots of talk about balance of healers at lower levels, like in Aurum Vale, not at 70. There are some people voicing sentiments like they think it's a great feeling that they're changing the playstyle of healers to be more healer-ish and WHM is going in the right direction for that. SCH and WHM appear interchangeable based on content. WHM just needs to contribute to party DPS since they don't bring damage utility, which is fine because their strong healing abilities will give them more time to DPS. There a couple suggestions early on on how to tweak a few numbers to make it desirable.
But, they also seem to be in general agreement that they will withhold any judgement until the final mechanics and values are set when the game is released. And a lot less (read: none) of the rage and doom & gloom from here.