The idea is to make experience stars leading for matchmaking, not trophies.
I have low trophy count myself, but even in the
950-1100 range TH 9 players are lurking.
They have no business there, other than destroying players that are no match for them.
It is no fun for the receiving end, but no challenge for the attacking player either.
If being paired against a experience minus 15 to plus 15 blue star player (this range is open for discussion), it would be more fair for both parties involved.
Also it would make the risk of being revenged a lot higher.