The larger problem is the insular approach they take, where you are expected to avoid friendships and keep 'worldly' people at arm's length. If your religious meetings are all done via Zoom, you lose the sense of community that churches provide for so many people. And since JWs prefer to limit their social interaction to other JWs as much as possible, they are effectively cut off from any community or social interaction.
Since they are easing up on reporting requirements for preaching and on how preaching is done (more carts, less D2D), I wonder if they even need the weekly service meeting anymore. A two-hour meeting on a weekend morning featuring a public talk and Watchtower study would make things a bit less stressful for the rank and file. Combine that with allowing them to have normal social lives, and you might find that KHs are full all the time.