Steps 4 and 5 refer to actions that you would take on your MC Server PC. They assume that your Sony TV shows up under Playing Now as a Dynamic Zone, and in the case of step 4, that you have more than one DLNA server defined in MC, so there is actually a choice of server. Otherwise, if there is only one DLNA Server defined in MC, that becomes the default and is automatically assigned to the Sony TV Dynamic Zone.
Step 5 is one way to "Push" media to the TV, which is only possible if your Sony TV appears under Playing Now as a Dynamic Zone. The same is true for other methods that can be used to Push media to the TV, such as using a MC installation just to Play to the Dynamic Zone, building a playlist and playing to the Zone, or using a remote as a DLNA Controller to send media from your MC Server to the Sony DLNA Renderer, using using server selection and "play to" Zones.
Does your Sony TV appear under Playing Now as a Dynamic Zone?
I ask because I cannot get my Sony TV to show up. I think it used to in the past, certainly, an older Samsung TV did, but I think I deleted the Sony TV Zone from my MC installations, and now there is no way to add it back. MC certainly sees the Sony TV, as it is appears under "Services & Plug-ins > Media Network" with just "Device discovery server (SSDP)" selected as the Server to monitor in the drop-down list at the top. MC reports both "M-SEARCH" and "NOTIFY" packet from the Sony TV IP Address, directed to what I assume is a broadcast IP Address, 239.255.255.250:1900. Other applications do see the Sony TV as an available DLNA Renderer, and I am able to Puch media to the TV that way. BubbleUPnP works for example. But not MC or MC for Android (I think - testing is problematic on Android).
Anyway, if your Sony TV does not appear under Playing Now as a Dynamic Zone, then you need to use the Sony Video App to "Pull" media from your MC Server, and hence the DLNA Views need to be set up if you want to see a structured view in the Sony Video App... if it accepts and uses those views. It may not. I haven't tested with my Sony TV as I stopped playing with DLNA when I hit the problem with the TV not being visible in MC. But I can Pull media to the Sony TV from my MC Servers using the Video and Audio Apps on the TV, using the default drill down views those Apps provide.
Note my Sony TV is a 2016 model, equivalent to the American Sony XBR-65X930D I believe, which would most likely be running the same Android version as your TV.
Note also that the Sony TV Apps aren't very fast, with significant lag in moving around the menus. Your TV may have a better, faster processor though. But I would be surprised if it matched a PC response.