The most misleading word on the paperwork is a labeling rule rather than advice. On a Loan Estimate, the owner's policy appears under Other Costs carrying the parenthetical "(optional)". That parenthetical is mandatory: 12 CFR 1026.37(g)(4)(ii) requires that "(optional)" appear at the end of the label for items disclosing "any premiums paid for separate insurance, warranty, guarantee, or event-coverage products." It is a category label applied to every separate insurance premium on the form, and it says nothing about whether this particular coverage is worth buying. A companion rule at (g)(4)(i) requires the prefix "Title —" on any item that is a component of title insurance, which is why several unfamiliar lines on a closing statement all begin with the same word.
A search and a policy are not the same protection, and the gap between them is the reason the product exists. A title search examines public records for liens, judgments, easements, unpaid taxes and breaks in the chain of ownership. It cannot find what was never recorded, and it does not stop a searcher from missing something that was. The policy responds to both categories: a forged deed, an undisclosed heir with a claim, a prior owner's unpaid contractor, an error in the records themselves.
Two things in the policy itself repay reading. The first is whether the insurer must defend a covered claim as well as pay it, because a duty to defend is materially different from a promise to reimburse a loss after you have hired your own lawyer. The second is the schedule of exceptions, which lists what this particular policy will not cover, often including matters an accurate survey would have revealed and rights disclosed in the public records the buyer was given.
There is more room to shop than the closing package suggests. CFPB says plainly that "You can usually shop for your title insurance provider separately from your mortgage. If you shop for title insurance, you could save money", and that if you buy the owner's policy, "the total cost is usually lower if you use the same provider for both the lender's policy and the owner's policy, compared to buying them separately."
An itemization at closing that disagrees with the disclosed figure is not automatically an error. CFPB addresses this directly, noting that a settlement agent, lawyer, lender, agent or title company may hand over an itemized list "including your title insurance cost", that it "could be different than what is shown on your Loan Estimate or Closing Disclosure", and that this "does not necessarily mean you are being charged the wrong amount." The two documents are prepared under different conventions, so the figure to check against a tolerance is the one on the federal form.