HDbaseT - Is the power feature a fire hazzard?

There is some buzz since middle of last year about HDbaseT as the next best thing to replace HDMI. A lot of people were confused about what it really is and that it is really a sort of booster technology for HDMI rather than a replacement. I think this is just because HDMI is so bad that people are just being hopeful.
So I've looked into it and although I think it has some benefits in combining signals like Ethernet (which HDMI is also supposed to do by itself), there is one area that I still can't buy into: Power.

HDbaseT marketing is claiming 100W of power to run a 40" TV, over Cat5 cable. That sounds like a lot of power, and it is, so my concern is can the Cat5 cable handle this. I found a web calculator to help:
http://www.powerstream.com/Wire_Size.htm
Now I am not an engineer (and I don't play one on TV), but I know the basics. Cat5 is 24 gauge wire normally, but I've seen it from 22 to 26 gauge. So according to the calculator, over 34% of the power could be lost in the cable. So for 100W that is 34W heating up of the cable. So HDbaseT is:

• Very innefficient, not green friendly
• Not safe - I don't want 34W burning away inside my walls

After reading the Valens/HDbaseT website a lot more, I see that they don't actually have any chips to provide the power solution. So basically it looks like they just made that part up and the manufacturers are on thier own to make it work. A quick survey of some manufacturers that claim they are working on HDbaseT products shows nothing about power.
As a second issue to this, I discussed this with my local town's building inspector. He had not heard of this, but in a nutshell, he would not sign off on anything that is not UL approved, and in his own opinion he felt there is no way anyone would get UL approval on sending 100W over Cat5 cables.
In conclusion, although I have been anticipating this technology, digging into it has surprised me a bit to think that in reality we are going to simply have HDMI 2 with all the same problems.