There's a difference between rooting a device to stick it to DRM overlords, playing pirated games, or running your own homebrewed whatever on your phone versus enabling a platform through which someone can fix a complicated machine that's worth 1000x a PS5. The farmers taking out loans on these machines are betting their entire lives on it.
I'm definitely not saying this is inconsequential, but I really want to know just how many farmers are going to plug in, jailbreak, and get to tinkering with machinery that is their livelihood -- not just an expendable piece of hardware that gets discarded when its bricked...
Let's see if this is a close enough analogy; I'll forever maintain that Linux won the OS wars decisively broadly, and that 1-2% of the desktop is an overwhelming victory. The numbers don't sound great, but what you want to do is to compare to "what would this look like if it was only 'big-company' owned software," and the answer is very different. We probably wouldn't even be talking about "Operating systems" at all. Just "Windows" and "Apple" boxes.
Keeping this stuff open, by whatever means, law, hackery, force, whatever, has long term down the road multiplicative effects.