diverging

Because planets only exist in the solar system.

They attempted to create a definition for an “exoplanet” but that never passed, so aggregations of matter orbiting stars outside the solar system have no official name.

The IAU resolution (pdf) that they voted on does not include what comes after “More generally”. The page that you link to is apparently the source and is not official.

Pluto has completed millions of orbits around the sun.

At the time of the IAUs release of the definition of a planet, Neptune had not completed an orbit since its discovery, and yet they still called it a planet. Clearly, this weird and arbitrary statement that you have put forth did not matter.

How many planets are in orbit around the sun? 8
How many planets are in the entire universe? 8, because a planet has to orbit the sun.