You’re referencing a much older video. Six months ago Lawley proudly proclaimed that he was “Mac free“.
And it’s not just Youtubers, bondr006 on this forum boasts of how he runs his entire real estate business from his iPad Pro.
I agree that these folks are the outliers. A far greater proportion of iPad owners, including myself, use their device as a compliment to their Mac. Why lug my hulking, heavy 16 inch MacBook Pro out on a day trip when my 12.9” iPad Pro will work just as well for writing, research, emailing, photo and video editing?
Plus, there are many millions who are delighted by the lightness and flexibility of the tablet form factor and touchscreen input. For them, being restricted to a physical keyboard and mouse seems rather quaint.
It’s OK if you prefer macOS and iPadOS doesn’t work for you, but calling iPad a “glorified iPhone“ betrays ignorance of its full capabilities and professional uses.