I know you does not gain anything, and you cannot change the end of the story, but finally it may end up with HUAWEI Tab M7 5G as the best selling tablet in 2021, thanks to Mi Pad 4 users in 2020.
You can simply neglect this estimation, but you can also reply.
1. Mi Pad 4 ends up with Miui 10,not Miui 11.We just need a nice version jump, like the Honor 20s .（emui 9.1 to 10.1)(Huawei is Xiaomi's biggest competitior, yes or no?)
2.‘Because it's not profitable ’ I think not releasing the update is more unprofitable because terrible update support for...
Yeah :) I have the knowledge
However I still have hope to get official MIUI 12
It may(and very likely) be more stable so I decided to keep the petition open.
Also not all mi pad 4 users have the knowledge.
For OFFICAL update
You can see the Samsung Note 8 petition is still here when Lineage OS 17.1 is out
And only a few users have knowledge to install custom rom like you, and flashing may brick devices.
Most of the users are waiting for Xiaomi to push the update and the petition is for them.