So apparently Nintendo thinks that H3D being Zones meta was bad and slapped it with a point and mpu cost nerf, (granted, you just need an extra sub now but still, that takes an extra slot for one of those one sub wonders.) Despite the fact that you need to commit 3 mains and now 4 subs to reach 49.9 dmg in a single shot, a massive point requirement for armor (though granted again, it's a painting weapon.) and it's somewhat high learning curve.
Meanwhile Kensa Pro gets a slap on the wrist special cost nerf, along with a bomb that it can 2hko off of thanks to mpu that it only needs to invest in like, 31 ap with (less than H3D) to reach 49.9 damage, giving it a pseudo 11 ttk that allows it vaporize enemies at cds range as fast as a dapple dualie (if they took damage). And access to a special that's been getting better each patch. All for a weapon with a significantly lower learning curve than H3 and most other long range shooters.