Yeah, after Meteor they said future adaptations would be far more different to their original counterparts. And so far, that is holding true.
As for this, Meteor’s abilities hit for less damage, but apply burn DoT. That is the most important difference between them, really.
So for Meteor, you should spread out your damage. If you continuously attack one target like with Goliath, you’ll be wasting your burn damage, because the next hit will apply new burn damage and the old DoT from the previous attack will be lost. You’re literally losing DPS.
Original Goliath will focus someone down hard, Meteor will spread out damage over more players. A dev once said that with Meteor, people won’t go down for a while longer, but when they do everyone will start dying really close together. And I think that holds true.