How is verification faster and easier? Normally you would check an article's citations to verify its claims, which still takes a lot of work, but an LLM can't cite its sources (it can fabricate a plausible list of fake citations, but this is not the same thing), so verification would have to involve searching from scratch anyway.
Because it gives you an answer and all you have to do is check its source. Often you don’t have to do that since you have jogged your memory.
Versus finding the answer by clicking into the first few search results links and scanning text that might not have the answer.