DJI should stop releasing GO 4 app if there's NO benefits for the previous MP line.
They should start releasing DJI GO 5 or something that is more focus on the current M2P/Zoom.
This way users w/ previous MP will not be wasting their time updating app that sometimes created a issue/s.
Just throwing it out there!

Would be totally for it; except for one matter.  
DJI needs to clean-up, de-bug, and Optimize GO-4 App first.

Examples:
On SmartPhones with microSD card slot, you can choose to store videos to microSD card.  YET with CrystalSky Ultra having to microSD card slots, there is no option to do so!
Even on DJI's own ''Professional'' smartdevice, if you turn on features like focus peaking and brightness highlighting, GO-4 is so slow (or bloated) that it results in Live view Video stream problems.

GO 4 App is broke on several Android devices.  They will need to fix this first.

Hi, Thanks for your suggestion. We will inform our team if we could possibly add another application for different drones. Thank you for the support.

DJI should buy Litchi and combine the best features of both. That would be fantastic!