There is a big copyright problem with using ML coding assistant bots and it goes both ways: using code without license and giving away own code for free. Even FOSS comes with a license which conditions are not satisfied if a bot copies part of that code into yours. Not even permissive ones like the MIT license.

For the time being this is somewhat mitigated by the bad quality of bot-generated code even for problems only slightly more complex than a variable assignment. Or not: if the bot comes up with something that works you can bet it is a 1:1 copy of code found in the training material. Which is probably licensed under some terms neither you nor the bot know about.

"Easy" tasks those bots can do: write API docs, benchmark and unit test skeletons. Github Copilot in VSCode is as well a more advanced code completion tool. Even a junior can do more than that.