Pretty much. Again, kids watch Boruto in Japan because it on Sunday (the only day they don't have school) and its "babies first shounen."
As for merchandise, after a best an attempt of letting Boruto stand on its own. It flopped so hard; that everything is now advertised as Naruto-Boruto products if they include the sequel's cast at all. In the konohan theme park it almost completely Naruto except for an image or two of Bolt.
Hinata only really ever sold love pillows from how I understand it. They tried expanding her merchandise after the last. It failed.
So true. Especially on the Naruto-Boruto advertising for products with the sequel's cast, and even forcing Boruto into stuff like Jump Force for no raisins other than to shoehorn him into stuff.
And yeah, Hinata merch had gone up when The Last came out, BUT it didn't work out as you said, and a lot of that merch just collected dust.