>>33148368I can disprove all of it, actually. You really should play the games because Gamefreak went out of there way to make sure there was stuff to find around there.
>no content what so everThere are items located everywhere, as well as trainers to fight. ORAS added Secret Base spots too (I think they were in Emerald as well) if you want to do that. So no, you're wrong here.
>no interesting areas to exploreThe entire area to the left of Pacifidlog was interesting. Lots of trainers to fight, a few items to find, and the Sealed Chamber if you stuck around long enough. There were also Horsea/Seadra on the left if you wanted to try and grab Dragonscales. There's also the abandoned ship and that ice cave north of Mossdeep. Not sure if those completely count but you Surf to them.
Water routes are definitely fun. Lots of freedom in what to do. The issue in Hoenn is that there needs to be a better variety of mons to find. So there, I've disproved your asinine statements. There's content in the sea routes - items to find, trainers to battle - and there are a few interesting places to see.