Viz are not EA, bro. EA has a history of shady business practices and actively fuck over their audience with their financial practices. Viz, at worst, don't license the shit you want. That's FINE. They're a company. A bigish company in an industry with few competitors, but that industry is small over here, whether we're talking comics or specifically manga. It behooves them to not license every popular title demanded of them. One could even argue that doing just that lead to many of their failures some years back. After all, there's a reason they stopped publishing Kurohime, Gin Tama, Reborn!, Strawberry 100% and such. There was too much product and people weren't buying in. Who's to say the same won't happen if they were to license any amount of the 9 titles suggested? They publish a bunch of stuff, and are always expanding. They just can't do it all.
And why mostly Jump? Market analysis would probably support me on this, but Jump sells for them. A lot of their other titles simply don't perform as well
This isn't even me being an apologist here. Viz has plenty of problems, mostly to do with brand identity and marketing, but you're beating them with the wrong stick to be sure.