You're progressing as much as the previous 4 generations of that cleaner, all dupes which are near market dominant
V16 <- Gen5 <- V12/V15 <- V11 <- V10
But Dyson's superior handstick form factor dates back to DC35, so should be... <- V10 <- V7/V8 <- V6 <- DC35. That's 7 generations, if you make the lineage continuous!
and only slightly more than with a wider head if you're cleaning properly with it and understanding how to get the best deep clean without much additional time or effort. A wider head doesn't mean a better clean either. If you're so bent on saving time at the expense of everything else, only push it forward like a wheelbarrow and skip the back pull.
That kinda explains why no normal-sized Dyson cordless has the XL roller heads. The Outsize models (from V11 and Gen5) have the XL heads because they're meant to be used as cordless uprights that has the shape of handhelds, owing to them being larger versions of the normal-sized flagships of their respective time.
Also, if you clean method(olog)ically, you get the best clean. Simple, as
@Vacuum Facts recommended.
Now that issues are correctable (that they're going to get criticised for), I'm actually really enjoying the V16. I'm really starting to appreciate the power consumption optimisations. I used to get about 23 minutes in auto with the Gen5, which was enough for me, but now I get over 40 minutes. This is way more than the extra battery capacity they added, and is mostly from the power optimisations. Less is more afterall. The new technologies are great. The unswept line in the middle, while not ideal, is actually not something that affects performance significantly, and in fact acts as a guideline for the next overlapping pass.
1) I told y'all V16 is amazing when the issues are fixed.
@Vacuum Facts 
2) I see the V-shaped front of the new dual-cone head (which is normal-sized, not XL, if you were asking) as more of an issue than the little unswept path. This is because of the edge cleaning, particularly on carpets, as it means the frontal cleaning is even worse than the previous head (XL or not), especially at the sides, forcing us to use the edges of the new head to clean the edge. Also, since
@Vacuum Facts chose to call the soft roller as redundant because of the gates in the main heads - both old and new - when in fact said front of each snowploughs some of the biggest of messes (I don't mean the whole big mess test though, partly because it's not representative) even with the front gate opened all the way. So instead of adapting the normal soft roller for the V16, why not adapt the Vis Nav's multi-action roller into a separate head for the V16 itself, complete with a(n even) brighter version of the same old laser from said normal soft roller? That why, the dual-cone head would serve as the main brush bar roller, while the Vis Nav multi-action bar would become the soft roller instead. Sounds like a V11 to me, only because Dyson chose to go through with only the main head, hence why the soft roller looked like the afterthought compared to the perpetually de-tangling dual-cone head we got.