Because context matters. “Top 2 offlane of all time” doesn’t point to ceb in any which way possible.
Up untill ti8, kuro was the top esports earner of all time. Would you say kuro at the time was the best p5 of all time? Or best (dota2 / esports) player of all time?
CDEC was second at TI5. Nobody in right mind would ssay they are the second best team of that time. Same with DC. And you can take it further with DC - they were underestimated or not enough data to prepare against them while other teams had so much data.
Short lived bursts of winning dont earn you the title of GOAT. Long term success, especially from the beginning to the end of the career does.
A TI win points to an amazing performance in the tournament meta. Thats it. Some players get a moment of enlightenment or are lucky to have their heroes (or ones they practiced) be good for those two weeks.