I'm not sure this sentence actually means it's technically easy. Obviously it depends on the program, making a simple web page is not the same as building an MMORPG. But other aspects of development can be often overlooked by programmers, like software design. Or like marketing, selling the project you did.

Programming was never the hard part for experienced programmers. And now that AI "solved" it, these programmers still face the same challenges they faced before.