It looks great, but don't expect Ordinals to go there because nobody is interested in actually developing it, only printing money off of it.
And for a second layer to be successful, it needs an ecosystem around it, which is only possible by quickly gaining adoption.
Probably not, but I don't expect the developers who want to actually build something use Ordinals as their main platform for their projects. Perhaps digital artifacts collectors that are willing to pay and want to store the "art" in the Bitcoin blockchain. But BRC-20 token ponzis? I believe they will look for something more efficient, convenient, and cheap that will offer more utility.
Whether or not Turing-complete programs are needed for Bitcoin, and by the community, is debatable. But because it's going to be built within its own off-chain network then it shouldn't truly be a problem on-chain.
If it's gonna be off-chain then who's gonna care? Nobody will need to worry about fees and bloat if it's not using precious block space.
That's the point.