But with a lot more and varied content if I'm reading the blather correctly.
Seems like a case of selling a more comprehensive product to end users for the same or lower price as you charge your distributors. I foresee some Multichannel Video Programming Distributors (MVPDs) screaming bloody murder in AT&T's future -- it might go a long way towards explaining DISH's HBO situation.
I'll paste in here what I posted on another forum, relevant to your thoughts about how HBO Max and "regular" HBO fit into AT&T's relationship with MVPDs.
It only makes sense for the HBO Go app to stick around if HBO continues to exist as a standalone service for traditional cable/sat subscribers (given that HBO Go has always been the "TV everywhere" app that HBO subscribers can use if they log in with their cable TV credentials from Comcast, Charter, Verizon, Cox, etc.). There's been some talk of how all those existing HBO cable subs would automatically get HBO Max too (which, if true, would make the HBO Go app completely unnecessary). But I don't think that'll quite be the case.
HBO obviously already has carriage contracts in place with Comcast, Charter, Verizon, Cox, etc. and so has to work around those until they run out. My guess is that Warner will say to them, "We're killing Cinemax completely but you can still distribute HBO as a standalone service per the terms of our existing contract if you want. You still pay our negotiated wholesale rate to us for HBO (note: one industry analyst says that this rate, on average, is about $7.65 per sub) and then you charge your customers whatever you want for it. They'll still get the HBO linear channels plus streaming via HBO Go. (Oh, BTW, the only HBO linear channels we plan to offer any more are HBO, HBO Family, HBO Latino and HBO Cinema.) Or we can replace the current contract with a new one for you to distribute HBO Max instead. (Sorry, we're gonna have to charge you a higher wholesale price that's more in line with what Netflix gets.) Regardless of your decision, you should know that we're gonna offer HBO Max direct to consumers as a standalone streaming service for $16/mo and we're gonna advertise the heck out of it, so your customers will be aware of that option. If you're still charging $15 for just HBO, many of them will cancel and come straight to us for HBO Max for just a dollar more. So if you decide to stick with selling just HBO, you may have to lower your price to $12-13 (which is gonna put a squeeze on your margins, oops). On the other hand, if you decide to distribute HBO Max instead, we think you could price it at $17, a dollar more than us, because customers appreciate having all their content aggregated into your cable box UI, plus unified cable billing. And at the wholesale rate we're willing to give you for HBO Max, you'll actually make a bit more per sub than you would selling them just HBO at $12-13. (And all that gravy you're making on Cinemax is going away regardless.)