That table is only a Guide. It is not a table for Netflix which has too many variables in delivery of streaming Bitrates.
They use their own algorithm to deliver content based on available bandwidth you have and that is also governed by you ISP.
Deals between ISP'S and Netflix is another hidden factor in how this affects the quality of your viewing movies.
Using Netflix Streaming to compare 1080p and 4K CONTENT, you are not aware of how Netflix bitrates work.
You were probably watching that Pacific Rims movie Bitrate at 3 to 4 Mbps with 1080p.
When you switched to the 4K it probably changed to 12 to 14 Mbps bitrate.
They prioritise bandwidth for 4K.
Play the same movie via a high1080p bitrate file and then see what Netflix is dishing out.
it was Netflix at my sis's place but I use GooglePlay to watch 4K/HDR Movies at home. I don't know the bitrate of GP's streams but YouTube 4K streams to my TV at 60Mbps, I'd guess it's the same for GP. That's 60Mbps in VP9 (which is almost as efficient as HEVC) vs the typical BR's 30Mpbs in AVC.
The kids watched WonderWoman and Spiderman's homecoming yesterday. I was curious and watched the (37MB and 28MB) BR rips of the movies just to compare. It wasn't even close. The 4K/HDR streams has noticeably more details (the colours are way better too, but that's HDR). The 4K picture is just better at 3m from the TV. Not night and day, but significantly better to my eyes. Even the kids agreed.