A large number of people, more than likely the same players whom decided to gank the level 60s starting out in TBC back in the day when on a PvP server while being max level have now sussed that they can play max gear groups in the lowbie PvP where the usual players will only have Green and Blue gear vs their Min Maxed PvP and Conquest Gear.
I will be adding a link to a video that displays just what is happening in almost every battleground from 61-69. This was one of the worse cases I have seen, however the advantage of even 2 - 3 players that are deciding to abuse this tactic is still incredibly impactful on the enjoyment of the PvP and for those players who are more than likely playing the character that they got given a WoW level 60 boost on is literally unplayable and I definitely feel at least a large proportion of these newer players will either leave the game completely or will just decide never to touch PvP within this level bracket.
This in turn will also massively impact and plummet people to become immersed in this game if they joined for the PvP styled content. The state of this is insane the final image I have attached to this document displays the damage differences in those whom are playing PvP from a normal levelling character vs those who are in full honour/conquest gear while level 70 is insane.
And it would likely have been much higher if it wasn’t due to the fact that players of this side decided to cap the flag 3 times. This is by far one of the worst experiences I have had within who PvP and I am a long time user, I cannot imagine how it feels for those new players who want to try out PvP for the first time within the Dragonflight expansion.