Cora loved the Refsnyder platoon, so that kinda shows he's not against the idea.
He may not love platoons, but I do not think he dislikes them. Yes, many of the platoons are formed after a player is hurt, and he is trying to maximize the best he can get out of bench players who usually have serious flaws- like putrid splits, but he could have chose just one sub, if he hated platoons. One of Cora's traits is that he tried to find playing time for all the players on the 26, and if you wanna play a flawed sub, you are going to pick games where he is most likely to succeed, such as vs a beneficial armed pitcher.
In 2018, we traded for Pearce, who was used mostly as a platoon, until he played so well, Cora could not sit him. I think they started 2019 with HRam platooning at 1B. (I could be wrong.) In 2020, I think Dalbec and Pillar were semi-platooned. Ref started platooning in 2022. Romy started platooning in 2024, but he was forced to play vs RHPs, this year, and actually did okay.