It is well known that the line continuation implementation is challenging (the fact that it doesn't work if there is anything after it, even just whitespace, causes problems for beginners; also, it doesn't help that it simply looks like a spec of dirt on the screen). Yet some of us find that commands are more readable when they span multiple lines, like this:
-Param value1 `
Also, some of us use line continuance so that we can start a stage in a pipeline with the pipe symbol, like this:
| Do-SomethingWithIt `
Both of these syntaxes make for easy identification of commands that span multiple lines in structured documents.
With these syntaxes being desirable, and with the strong dislike for the backtick line continuance, why not just support these syntaxes without the line continuance character requirement? It would make scripts like this even easier to write, and if you could have comment lines in the middle (please do) it would allow for more detailed comments where desired. Plus, with support for comments in the middle you could play around with pipelines and parameters more easily by commenting/uncommenting various stages by simply commenting or uncommenting lines.