This sentiment echoes Socrates' famous position regarding the written word:

>If men learn this, it will implant forgetfulness in their souls. They will cease to exercise memory because they rely on that which is written, calling things to remembrance no longer from within themselves, but by means of external marks.

Both his point about writing and your point about Copilot are likely true in part or in whole. Ultimately it doesn't matter — the technology is here to stay and its adoption will be determined by the utility it provides its user.