At the end of the day, pures aren't even 1-25 def. Pures have mostly been considered as 1-20 def, and before that 1-10 def. At the end of the day even 1-25 def should've never happened; so what's the difference making it 1-39. If you want pures, it should've never went past 20.
Although, technically a pure is any account that limits any stat under 99 on purpose, aka a pure could be 75 attack 99 def...
To reply to the topic:
It's almost 2017, the game is dying. To make a new account just to attempt a restart on a dying game is typically a waste of time. The economy on the game is going to brown sticky stuff like pre-eoc GP getting cheaper and cheaper.
But that's besides the point, even changing the def levels to 1-20 wouldn't change the fact that clans like CP will always bring mains and pure clanning will forever be fucked.