Ok I had to look this up because last time I did MC modding was when I was in high school... It used to be obfuscated. Someone used to manually map those to human-readable names (didn't know this back then and thought the names were somehow hidden in the bytecode). But recently MS has started deliberately shipping unobfuscated builds.
So I'm getting the feeling they actually want JE to be moddable. Which makes sense because they're already successfully pushing Bedrock on a majority who don't care about modding, especially on locked down platforms, and the remaining JE players are a different segment. But that could change just as easily as their leadership changes.
But also just realized, if this changed, rather than locking down JE, they'd probably just kill it and maaybe release Bedrock for Mac/Linux to keep those players. Possibly not.