That's true, but they still had more dialogue, maybe because it wasn't voiced (which is the way to go in my opinion).
Most older RPGs had more dialogue because NPCs had to explain every little thing about the world to the player, as complex book/terminal/note/codex systems didn't exist, and graphics were so muddy that trying to do anything but larger details was impossible. Modern games shouldn't have as much dialogue, because theres no need for NPCs to spew out all that background information that could, and realistically would, just be in notes/books/terminals/codex.
A lot of questions posed to NPCs in old RPGs, especially fantasy RPGs, amount to setting a game in the modern day, and letting the PC ask what a car is. They should already know, having spent their entire lives in the modern world.
Fallout 1, 2, 3, and 4 at least had the excuse of either coming from a sealed vault, or a backwater tribal village in the middle of nowhere, but even then, the response to 90% of those question would have been "uhh, are you stupid?", with NPCs being perplexed you are asking about things literally everyone knows about. I actually kinda liked how Fallout 4 lampshades this a lot with NPCs acting confused when you asked about ghouls, or super mutants, or synths, or several of the chems. NV was the odd one out with the Courier having come from the NCR, yet being totally oblivious to everything about it.
Voiced VA did nothing but force devs to actually have to think of ways to present this other information other then the typical "PC: I know I have lived in this world for my entire life, and there is only this one massive empire or pantheon of gods that everyone is part of, but I am still going to ask basic questions about it as if I was totally oblivious to its existence even though that doesn't make sense." stuff we got before.