Seems kind of crazy, but when Home Assistant released their Yellow hardware, it was built with enough flexibility to have PoE and non-PoE versions.
I agree with you that it is an edge-case use, but high quality networking equipment is rapidly gaining entry into homes. So perhaps in a few years it will not be an edge case.
To share info, just bought 3 POE splitters from aliexpress, all cheap 5.00USD and under. Beware as these cheapo splitters do not send data unless a device is pulling power through the splitter. I mention it since my other more expensive splitters don't do this, and will feed data or power independently.
These are the ones I use and they've been great.
https://www.amazon.com/gp/product/B07WJ6DWKR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Yes please. POE support would be great. None of these nonsense about splitters and stuffs 
. Yes, I do have 3 splitters on my hubs.
There’s a discussion about the new hub appearing on the FCC’s website here.
But unless I’m mistaken, there’s no indication the new hub will support PoE.
I've also used similar POE splitters w/no issues. Adding link as these are still available in case anyone's looking.
https://www.amazon.com/gp/product/B07QPRVM51/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
And if it ain't there now, it's not coming w/the C8, that's for sure. 
Ain't gonna happen.
Just a note that the majority of POE splitters are 100Mbs max and won’t handle gigabit. Not that that matters on a C7
Mine goes up to 11.
Might as well include usb-c and wifi (the mini USB is too fragile)
FCC specs show both
Value engineering FTW. Though I don't understand adding WiFi when the dongles seem to work OK.
Well if pricing isn't different it's definitely a value add. If it is a tad more expensive, it's still better than someone having to buy the dongle, then the adapter as well and then worrying if they got a compatible one vs a built in one where it's engineered to work without having to buy anything. Though of course lan is always better.
Right. Definite value-add.
WiFi became a "must" for devices like printers years ago for them to become a standard in consumer environments. HA devices will need to follow that lead to transition from more geek\nerd devices to something closer to a toaster, i.e., almost everyone has at least one. 
Right, just like POE. Hard to see how an additional radio is costless and/or less costly than POE.
For some, not nearly all. For reference in 2022 a couple new higher-end home automation product introductions: a) RadioRA 3 processor only powered via POE, no WiFi, b) Control4 Core controllers WiFi via dongle only, 2 of 3 models can be powered by POE+.
I just purchased a fairly expensive, top tier consumer grade Wifi router. It has Wifi 6, USB-C, a 2.5 Gbps WAN Port, mesh capable, and nearly every other feature you can think of.
It doesn't have POE. Neither do any of their other mainstream routers. And the situation is probably the same if you have an ISP supplied router. I would speculate that for the average consumer, POE isn't here yet, it is a novelty.
It does seem a bit odd that there are now lots of 'consumer' routers with 2.5G WAN ports and still few with POE. Pretty sure they are very few cases for multi-gigabit residential internet while the universe of POE devices seems to be expanding.
$50 for an unmanaged 5 port switch with POE+
https://www.amazon.com/TP-Link-Compliant-Shielded-Optimization-TL-SG1005P/dp/B076HZFY3F
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