Is it really that bad for Transcendence to give 1% CDR per level?

I mean c'mon, it was even in the original concept. https://na.leagueoflegends.com/en/news/game-updates/features/coming-preseason-runes-reforged

At least make it give 2% CDR every other level. I would much rather take CDR over nerfed-to-shit Celerity or Absolute Focus, but because Celerity and Absolute Focus are immediate bonuses, it kind of makes Transcendence a little undesirable.