My first reaction to this is: well, yeah, it kind of does.
Knowing that this designer exists means that at least some part of it must be tied to reality; surely we could study this part to learn more about it. It also validates a heck of a lot of religious mumbo (but I can see this easily leading into various religious conflicts, potentially much worse than those of the past -- either way, there'd not be many atheists left around).
Then there is the contrasting question about abiogenesis: "okay, we *know* it happened, why do we need to study it?" The answers in both cases are the same; "well, why not?" and "because we can".
Of course, that assumes that the designer
does exist, something which is severely lacking in support. And like any other hypothesis, it would also need to account for exactly what we already know too. Again, something which does not appear very likely.