....With the current increase in gas fee especially on Ethereum network, I would have love to see the positive influence of such protocol on the entire blockchain.
You can observe how many users and developers will move to Polygon if you want to see if Layer 2 solutions have a good future. They've adapted the plasma framework. They're having an early success but wait and see if they can sustain it.
One thing I can say is that many people do not want to over complicate things. They also refuse to learn. They prefer to wait for on-chain solution to Ethereum's scalability issues like EIP-1559.