The real issue is that this REALLY hurts soak tanks. Not because soak tanks got better armor than other people, they didn't so the nominal gap in preformance is the same, but soak tanking depends a lot on big pools to get a standard result. In the context of already having 18 dice you can post edge in 5e a +9 to armor from ortho and lacing is massive, while 9 soak from a base soak of 4 and no post-soak re-roll isn't nearly as effective, even when you factor DV dropped.
amurai WILL take damage from attacks based on these new DVs, unless they are dodge samurai in a way that is hard for them to force prevent, unless things we don't know about come to light. Combined with the fact the new legality system seems to be pushing the value of 'social stealth' compatible gear up, and the fact that the value of big guns is going down to sorta soft revert to 4e autofire (though unarguably less insane than 4e autofire, as, you know, you can miss now and the hit rate penalty is baked in which actually does help make the dice a samurai can pull more useful) and its really questionable what the big value add a samurai brings to the team.
Like, yes, they are still better at resisting damage than other people, but Samurai is getting more power shunted to their offensive capability which never really was the draw (as at least in 5e it was pretty easy to one shot kill if you wanted too, offense was cheap, defense was expensive, even with old armor, so specializing in that is what really made a PC a combat PC rather than a face with smartlink and toner) and with the push for even more condensed social skills (And social skills were already REALLY cheap) and with possibly every PC caring about legality now even if they are a physical stealth PC, the Samurai's actual functionality on a run is coming into more and more question the more info we get.
Like I don't super care about the realism argument (though the non-intuitive argument is good. I think putting 1-3 soak on all armors would have been a good way to make them statistically not significant while still making it easier to wrap your head around how FBA protects you), but the role balance always assumed pretty insane combat supremacy in Samurai and unless their toys got much cheaper and easier to fit in (like big price and essence reductions to soak 'ware and 'wired, so that samurai hybridize on par with faces) this may be the edition where Samurai are the bottom of the heap, and I don't think that is going to be good for the game's accessibility.