I believe it's because the changes previous took away a lot of what made Dunmer a race people wanted to play, the "bit of everything" didn't match with their old design where's others stuck closer to their designs.Why are we buffing dunmer more? They were arguably one of the better races before.
What is the point of going wood elf at all now? Sustain? Redguard exists. Mobility? Redguard, orc and nord all offer some form of effective mobility; orcs with sprint speed, redguard with snare resistance and nord with immunity to chilled. And what is the purpose of 1.5k pen for 3s after roll dodge? I can't imagine people are gonna be thinking "hmm time to roll dodge to gain that 1.5k pen for 3s so I can kill this guy". The pen should apply permanently.