[..] We know that the movements of the crafts were not possible by any current aviation technology.
Do we? Do we have precise measurements of the object's size and distance from the observer and thus precise measurements of its movement? Do we have detailed knowledge of all existing current aviation technology, including all the classified experimental stuff?
This means, no man-made technology.
Only if the video shows an object, not a light. Does it? I didn't care enough to watch.
It's also extremely likely that we are not alone in the universe and that another planet has developed more intelligent life capable of interstellar travel.
No, it isn't:
We have little idea of the likelihood of life elsewhere in the universe.
We have almost no idea about the likelihood of intelligent life elsewhere in the universe.
We have almost no idea about the likelihood of interstellar travel, let alone the likelihood that a hypothetical species of people elsewhere have already invented it.
We have almost no idea about the likelihood of a hypothetical species of people who hypothetically have a hypothetically existing means of interstellar travel detecting our existence, let alone coming here for some reason. Space is big. There would be a billion advanced civilisations in the part of the universe observable from Earth alone and every one so far away from every other one that they have no idea of each other's existence.
This leads one to the logical conclusions that a] aliens exist b] they have the ability to visit us.
Logic can (and usually will) lead to false conclusions when based on false premises.
It's frustrating to admit it, but we don't really have a clue about this sort of thing. Maybe there are 100 alien spaceships visiting Earth every day and the sightings are just a tiny minority who allow a few humans tantalising glimpses just to wind them up. I've tried to find Douglas Adams' quote about that from the Hitchhiker's series, but failed. Immature aliens, probably drunk, messing with the primitives (i.e. us). It's funny, but it's also plausible
if there are other species of people elsewhere with knowledge and technology so vastly more advanced than ours that they have interstellar travel.