Oda's art still has varying line widths and little ink dab pools at the end of lines that you only get from physical inking. It's lacking a lot of the telltale signs of digital inking like super consistent line widths and a built in whispy quality to the line. However much he's doing digitially, it's not 100%.
At a guess, I'd say he's probably switched to digital for doing layouts, especially for complicated group cover shots like that, because it's way easier to resize and adjust things... but he then probably prints that layout and then inks over it traditionally. Hence the reason that video stopped at the layout stage instead of going on to show more refined line art.
And his coloring is definitely still traditional, you can't get that particular quality in photoshop without crazy amounts of extra work ad texture drops.