Would you rather
Have your max health cut in half for a whole game
Or
Triple your cooldowns and be stuck at your base move speed when the clock hits 20 min
Have your max health cut in half for a whole game
Or
Triple your cooldowns and be stuck at your base move speed when the clock hits 20 min
No.
Who needs cooldowns when you got

Really depends on champs/matchups. If I was aware of this but didn't know my opponent then I would go 1/2 health trynd. If I don't know what champ I will be playing as then 3x cds and hope I am an adc.
3- Play Dota 2.
first.
base move speed is probably bad enough on its own. Adding the tripple cds is too much