We sure don’t!
The FACT that there are roughly double the numbers of unique player-characters in raid logs in Wrath Classic than there were during WoW Classic shows that the game as it currently is is popular, and thriving.
On top of this, we have a blue post from prior to the launch of Wrath clearly stating that they wanted to settle the topic:
Not only is RDF unneeded, the game is doing quite well without it. Indeed, we saw a decline in population during the original iteration not long after the first expansion that launched with RDF was released.
Certainly many of us can agree that leveling is an arduous journey! However, I suspect that if that rite of passage is diminished with so-called “QoL” features that trivialize it, as well as the social aspects, such that the Classic leveling and day-to-day play experience and community becomes as hollow as Retail, the appeal of Classic will also fade.
As it is, the devs have made some decisions that have led to the ongoing interest and participation in Classic from the Classic community.