I think there is a misunderstanding. You need to
Combine the points earned by using Unlimited for them to have the same redemption value as points earned with Reserve.
Combine is term that Chase uses to describe moving points from one card to another. Read here:
Combining UR points from multiple card accounts [Consolidated]
I looked at the link you provided - and it seems I am eligible to combine points. So it would seem that the Ink miles could combine to the Sapphire Reserve UR account, where each point would be worth 1.5 cents towards a ticket purchase, for a value of 2.25 cents for each $ spent on the Ink card, versus 1.5 cents for each $ spent on the Sapphire card. Am I correct here?