How do people even question it?
No one dominated like that Astralis team and if anyone is the GOAT it’s someone from that team.
dev1ce with astralis reminds me of germany/spain/france when they won their world cups. Each of those players individually couldnt compare to players like messi/ronaldo/neymar in terms of goals/assists BUT, in a team these players all did their job very well. He was good and surprisingly hits more clutch shots than s1mple when he won them their majors BUT he is not the win condition. While NAVI was a team where, if s1mple did not perform, they werent making far, he dragged that team singlehandedly to finals, same with zywoo before this year's success. Same with niko, these guys hard carry that their failure means the team's failure and they are consistent enough to not fail as much in that hard carry.
I do think dev1ce can be included in the best player convos like modric/kroos/xavi/iniesta are sometimes involved. But thats about it, any further you need hard carry potential which he didnt have or didnt need to have.
For players like dev1ce, they will be happy anyway since these players work for the team & dont care much about individual awards, if he was flashy like s1mple, his team wouldnt have done as well since he holds the passive angles well. longevity wise tho, he absolutely smokes everyone. I enjoyed his recent performance against NAVI, man turned back time, after a break.