Look at PS3 scene, how many years later and now 3k/4k support? good things come to thise who wait. If you can wait.
Perhaps: The more updates come out, the more likely a higher kernel will be achieved as less devs have <5.x FW.
¯\_(ツ)_/¯
When 1.76 was a thing, I was on 3.5x, I stood still on 3.5. When 4.05 was a thing, some people stopped at 4.55, some unfortunately 4.7x.
Tldr: Point is 4.55 came out and people have stopped at 4.7x-5.0x. So 4.7x-5.0x is possibly where most devs without devkit might be waiting on.
Anyway:
We need transparency and willingness to share info for this scene to succeed.
I dont feel the inner circle like to share much, I'm sure the same thing happened in PS3 scene.
The reasons we have for why they wont release it yet are fair though: not to burn an exploit & wait for it to be patched out regardless of platform (ios/switch/ps4 etc).