The huge difference beeing that in 2017 it was listed at Bittrex which was one of the biggest excanges back then, but now there is no visibility to make that bigger technology leap even come into play in any way.
what do u think come first
DMD v4 release
or
bigger exchange listing
BINGO
first we need v4
we have two exchanges who support v4 upgrade with is extra effort for them
once we have v4 released
new exchange dont have the extra effort of coin allocation and claiming included from v3 v4 codebase switch
and its much more easy to get listed