Yes.., I'm with you about SeLinux issues ... That's so annoying for us ( old devices )...
There are so many app will not working well if you've root your device or be on custom LP rom ... Google make it more secure now..,
For me I'd think this is not to open source lol ... : p
Anyway, like I said I'm done trying to push our A2 over the edge as it still gets the job done just the same. I'm planning on getting an Asus Zenfone 2 next month but my A2 isn't going anywhere, so if anything happens I'll still be around.