I totally agree with this, but I'd go a little further and say Esmail has basically been treating the viewers who are waiting on a sci-fi angle the way whiterose has been treating Angela.
He was deliberately feeding us hope with the constant 'Back To The Fuure' references. shyt - he even let us see the particle accelerator.
At this point I think there are two types of reaction to Whiterose - you can either completely buy in like Angela (and to a certain extent Elliot) did, or go Dom on him like "Time travel?
The nikka just likes clocks and dresses....
"
I think something "Sci-Fi" IS going on, just in a different direction...
Last night's "suicide" crime scene got me thinking:
WHY are the Dark Army members willing to kill themselves? White Rose's assistant says that they believe in a higher cause, but what could that possibly be? White Rose as far as we know is a Chinese government official, not a cult leader. I can't believe that the "higher cause" that the Dark Army members believe in is money/power for the Chinese Communist Party.
So, what I think might be going on is literal mind control. I'm thinking that the "time machine" that Angela saw is really a machine that can implant commands into the human brain. Dark Army recruits are brought in and given signals to see White Rose as a person with religious/supernatural powers that they need to be willing to die for.
My guess is that the signal is wireless, and the signal leaked out when they were testing it and caused cancer in some of the people surrounding the plant.
White Rose once said to his assistant that Elliott's father was partially responsible for the theories behind his plant. Maybe he was experimenting with "helping" his slightly unstable son, and accidentally screwed up and really messed up his brain.
For all we know, there was actual Tin Foil inside the baseball cap that Elliott's father wore when he worked at the "Mr Robot" store.
EDIT:
And now, he's taking his talents to Africa