I've nailed the tart dough!

How many times have I made tarts here, countless! And they were always these kind of patched, repaired with dough tarts...
And in every cookbook, the tart doughs are so beautiful, they don't get holes and behave perfectly. I decided to change something 馃檪 In every recipe, shortcrust pastry is kneaded quickly and briefly, so as not to mash it with warm hands.
And if it comes to hands, it's okay, but as a would-be engineer, I thought that, for example, a mixer is basically cold all the time. So I put the classic dough into the kitchenaid, started mixing (with the hook on one) and forgot about the subject for a good few minutes.
Well, I watered it lightly because it didn't want to connect at first. The dough turned out great, flexible, soft, stable and even tasty. The tart itself is vegetarian, with beetroot, dill and onion, but it's the dough that I've put the most effort into.