Of course they're not the same riff!... That's exactly what I'm saying.. In the same way that neither that part from TDS and Blackened are.. They're not the same.. They're just similar.. Influence, coincidence, we'll never know.. Only They know..
In the same vein, it can't be deny that Death of Balance has that too similar part with The Mirror.. Yet, it's a technic very used by many other bands, changing from 4/4 to 3/4 or viceversa while the same riff is play it, so... The same happens with those five syllables on TDS.. In TGP we have a similar vocal part with "Enter the door".. There are four here, as well as could have been six, seven...
All homages done by DT are in Full Circle.. I correct myself: done by MP.. The rest we'll never know with certainty..