Now you can get angry!... and what is?
The inclusions of IP, correct?
Also... the current iteration's infrastructure is falling apart. So, WDW has the decision: spend the money to fix it, or, spend the same amount to do something new which generally drives up numbers. [The same decision which led to GMR becoming MMRR.]
And since Epcot's numbers have been flat and about to be embarrassed by being the least attended Disney park in Orlando once SWL opens... they chose to go with a new show.
Which has IP.
Which is so complicated with floats and drones and lasers and projections and sharks, that it can't be ready in time for 2019 to counteract the SWL onslaught. So... they're doing an interim show dedicated to Epcot for one year ( Oct 2019- Sept 2020).
Then the IP show in Oct 2020.
Then you can storm Epcot with torches, because the current ones may be gone! (Rotting gas pipes.)