I have 0 alternatives that offer HBO besides Dish.

For television or internet? 

Television - at least 3-4 of these in your area. 

Internet -  Two options depending on your area: cable company (Comcast/Time Warner/Cox) or Fios Company (Verizon/At&T.) What you get usually depends on who provides your television/phone, or which technology you want. 

No phone company in your area that provides FIOS TV? 

I still will need high speed internet through Comcast here...

Wouldn't such a company also provide internet service in your area, if they already provide television? 

Is there any proof that Comcast blocks the app to non-subscribers? Let's say I get my television from Verizon and my internet from Comcast. If I subscribe through HBO through Verizon and want to use my account to HBO GO, I'm assuming it is going to work. Likewise, if I had internet through Verizon, and cable through Comcast, it would not work. It seems to me as if it is account-based, not ISP based. It just so happens that people buy the packages and have both Comcast internet and television. 

Nope. I have checked. Technically most of them offer DSL at a whopping 4mbps in my area.... Compare that to the 80 I get when testing, and you can see why I am with Comcast. 

Note: Even with Xfinity app on X360, the only premium channel that where all the content is HBO. All the rest of the channels using the Xfinity app have everything.

Ahhh no. That's not a logically analogous situation, which seems to indicate you have no idea what this is fundamentally about. An analogous situation gaming-wise would be the ISP blocking access to online game content for the PS3/4 version of a multiplat even though the publisher has made that content available to owners of the PS3/4 versions of said game, and said content is freely accessible to people who use a different ISP.

Or if you want a utility version, it would be the electricy company blocking electricy supply to your washing machine (imagining that such a thing is technically feasible for the sake of discussion) because it is a washing machine you didn;t buy from the utility company. Because the utility company happens to be a home appliance retailer as well as a utility company.

The service people are trying to access is HBOGo, which is not a Comcast product. So Comcast isn't "not providing the service". The service Comcast is providing is as an ISP. Hence Comcast is blocking access to a service.

Anyway, I'm glad I live in a country where this sort of shit could not legally happen...I think...pretty sure...maybe I need to look into this a bit more. 

So your litmus test for if something is right or wrong is if people can survive without it? Wow can't set the standard much lower

you know what's crazy you think it's about TV when it's about internet access, it's not about people surviving without TV it’s about internet providers blocking things unless you pay more for their own equipment, or those they made deals with.

If you don't think Comcast, Verizon, AT&T etc are too big or too powerful with not enough keeping them in check, I'd have to ask which you work for. Because this reminds me of how they pretty much extorted Netflix.

No my litmus test for whether or not something is a utility is whether or not people can functionally survive in our society without it. This is about television, not internet. Nobody has brought evidence that this app blocks people who are using Comcast internet, but a different HBO GO account. 

Except this is not an internet block. It is an account block. I'm almost sure that if I had a Verizon account that has HBO GO and tried using it on a PS4 connected to Comcast I will be able to view the content in question. Nowhere did it say it was ISP based, just HBO subscriber based. Comcast provides the subscription that they are using to log in. Without the subscription, you can't log in.