This is a more common issue than most people realise. They usually don't even notice. These toron handles are very hard to get perfectly straight when made from soft leather, it literally needs luck on the craftsman's side, not just being skilled. And the smaller the handle, the more likely that it will have this bend. Remember, that these are laser cut with extreme precision, even the holes for the seams are pre-punched to make them completely identical. But the untreated cowhide gives the handle natural flexibility, that can result in this look. But this is just a look, since the leather is soft, it will literally bend to your will with use. If you pack the bag and carry it around by the handles, it will stand straight in a month. Of course if you feel that you shouldn't, or you need absolute perfection from day 0, you can always ask for an exchange, but unless you find something else to be really messed up on the bag, I wouldn't recommend it. I don't find them to be a dealbreaker, they are as natural as the veins on the Togo leather at Hermès, with the difference that this will most probably go away.
And one more argument for keeping it. Even the one on the official press photos are like yours:
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