If the goal is to stay under the cap, I think there are higher priorities than filling C. They don't have anyone close enough in the org that is ready to take over as a cheap option long term at C, but I just think SS, Corner OF and SP are much higher priorities. Would the signing prevent them from filling the other needs or extending Raffy? IDK.
Aside from 2021, his DRS numbers aren't impressive and his framing isn't very good.