I'm going to be super brief on this page as it seems to me the point need not be hammered home when it is so obvious a 10 year old can understand it's logic.
Tau is a very young developing solar system.
This article explains how the current solar system formation theory goes.
CI Tau is about 500 light years away in a very active part of the galaxy termed a “stellar nursery.”
At only 2 million years old, CI Tau is a mere infant in stellar terms. Our own Sun is about 5 billion years old and has another 5 billion to go, give or take.
So CI Tau is too young to have the type of gas giants that it has. Or so we thought.
This is nonsense.
Our planets were in the process of forming before the Sun ignited.
The planets were forming along with and at the same time our Sun was forming just like Jupiter accreted material into the Galilean moons so too a proto-star accretes material into orbital zones creating planets prior to its ignition.
This process can be seen taking place in the rings of Saturn as the moon's Pan, Atlas and Daphnis form from debris in the rings as they clear empty bands.