Why use std::make_unique in C++17?

Question

As far as I understand, C++14 introduced std::make_unique because, as a result of the parameter evaluation order not being specified, this was unsafe:

Answer 1

Every use of new has to be extra carefully audited for lifetime correctness; does it get deleted? Only once?

Every use of make_unique doesn't for those extra characteristics; so long as the owning object has "correct" lifetime, it recursively makes the unique pointer have "correct".

Now, it is true that unique_ptr(new Foo()) is identical in all ways¹ to make_unique(); it just requires a simpler "grep your source code for all uses of new to audit them".

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¹ actually a lie in the general case. Perfect forwarding isn't perfect, {}, default init, arrays are all exceptions.