The whole point of the new dish is to cut cost:
- They integrated the power supply into the router. Cuts the cost.
- An ethernet port and a physical switch with all its required component costs money. If SpaceX determines that only one digit percent (very likely) of its customers use the Ethernet port on the router (or don't use the router, both of which is detectable from SpaceX PoV), then the ethernet port becomes a good target to remove.
- Same story with the cable from the dish. It's most likely that the cable, plugs and connectors for that cable costs less overall. Also note that there is not PoE standard that allows 180 watts, so they essentially had a non-compliant port that could potentially cause issues in some scenarios. For instance, the ethernet inductor module on the PSU board for the first version is rated for lower current than the dish needs at its maximum power usage so the components are essentially running on the edge of their spec, probably why some PSUs were failing (see reddit). In addition, by making the cable non-standard ethernet, they've eliminated a potentially large number of support requests of people adding extensions to the already at-the-limit cable and wondering why it doesn't work.
As for why you can't transfer your account: you have a service that's in high demand and low supply. It'd be irresponsible of SpaceX to allow one person to sign up for 10 services, then sell the equipment at higher price to a 3rd party and transfer the service, while those who really need the service have to wait longer.
It's good to sit down and think why certain product decisions are made, instead of assume "user hostility" right off the bat.