Lot of Archviz Events have "talented" speakers who can make only 15 minutes worth of content stretch into boring 45 minutes :- ). Maybe you can download some of the archviz talks, and speed them up 3X, maybe even those might be worth watching then.
Not reason to watch ArchViz specifically at all, general creative business almost always applies as well, so does photography and business. It's better to get inspired outside of your own industry and find new ways to look at your work and apply new concepts.