Capsule founder here- ty for the comments. We're certainly not claiming that MPC based systems don't exist. We're often asked how capsule compares and assume readers of our announcement post will be interested in understanding the same :) Capsule is bringing these benefits re: programmability to a broader audience.
Also important to have more options on the build side. I’m excited coinbase released their wallets, but it’s not my cup of tea. I want more flexibility in design options and more thoughts from the builders on what other builders want. Coinbase has a consumer centric perspective, but imo it’s skipping steps