Flash #752 (2016)

While we are knee deep in the Flash's Next Big Thing story, I have to give credit to Joshua Williamson for his cut and dry work through of the Barry in Heaven idea. Very little hoopla, no doubt in Barry's mind that where he is is not what it is suppose to be, and more importantly no Sobby Sally moments where the main character hems and haws about bring a stop to the ideal future being presented to him.
Unfortunately, this does not help cover up some of the glaring gaps in believability that are found here. I have several questions that probably have no answers. Question 1: If Paradox is such a bad@ss about destroying the Flash legacy, why did he not kill Barry? Why send him to a place where he was living out a heavenly scenario? Now I hear the fans screaming that the world was a deathtrap long term but that still doesn't make sense. If I'm a super-villain with the ability to end the legacy of the Flash, I'm not going to go long term and hope he's not smart enough to figure it out.
Question 2: In this strange limbo world that is slowly killing him, How is Barry able to super speed jerry rig, not only a set of armor to help him survive but a Batman worthy set of monitors that give him access to all of time and space? And then on top of that, a Cosmic Treadmill?! I mean, I know that Barry is a smart guy but this is just to far-fetched.
Question 3: Why does everything these days come back to Zoom?! Remember the good old days, where Zoom was just an evil Reverse-Flash with opposite colors. Of course you don't! If you did, you'd be like me scratching your head trying to figure out how opposite Flash became this ultimate unstoppable (even in death) psycho-killer. I'm willing to let somethings slide by in the telling of a good story but this one has some massive holes in it.