It's a sleek, nicely cut looking ma-1 that's likely of solid construction given my experience with the brand. For some people that and the placement/execution of the detail makes it ideal.
I have a few ma-1s and even the ones with the more modern cut are kind of puffy... which you could say is the point of an ma-1.
But like a sleek puffer, when done right, it can be a big deal for some. It may tempt some that have never been into ma-1s before and that has a certain cachet.
I recently bought a denim jacket where I was a self-avowed hater of all denim jackets, but this was perfect for me and made me want one. It expanded my horizons in a way and that's something i value.
Some people get excited about the perfect pair of indigo jeans. Shrug. Though I'm sure bandwagonism/groupthink bears some responsibility as well.
Plus its Japanese, this attachment ma-1, and Japanese shit is cool