I never got my head around the premise he didn't see this coming. As you say, this was his baby. Yet, the exit was as certain as a fresh guillotine blade. The metaphor to Louis XVI demise ends where Dan was allowed to cash in, proceed on his merry way, with 0 accountability and land in a bed of flowers. Too neat and circumstantial to be a random outcome. Additionally, Dan left before Tman sold their prior company. There was precedent to believe it was his time to go. It's a theory and certainly fits the outcome.