Ok, that can be considered good deal, go for it then ;- ). The power delivery is the same, but the heatsink is lot worse, so you will have to account for this with good case airflow, and ideally additional fan pointed towards the VRM.
Btw people are quite hyperbolic with the overclocking numbers in general, 4.1 OC is not "high", it's the practical limit of this CPU and territory where every other board then MEG will be in smokes from VRM.
Also Debauer's numbers are based on manual under-volting, you might not win silicon lottery for that to reach same voltage with stability. But as Peter Sanitra and Michal Timko have demostrated, people have great results mostly.
The BIOS ? Well, depends. For me, yes but as you see elsewhere on this forum, James had issue with stability on latest beta. And I checked the MSI forums, and it seems people with RAID have trouble (but seriously, don't use RAID in your workstation in 2018, it's never good idea, never ever). Apparently the issue is because MSI is slow to release drivers for latest Win10 distribution (Gigabyte releases their drivers in October ahead).
Truth be told looks like this platform overall (x399) just isn't being given much priority, perhaps due to amount of sold units. Niche platform, issues take longer to resolve.
But I would feel safe about this, x399 has still at least two years of lifespan, so all kinks will be ironed out as these boards need to support another generation of hardware.