You don't need to spend $200k, because results can be bad for cheap.
Though we're finding the studios contracted to do this can bill $50k. I know several studios that previously billed clients six figures for ad campaigns (P&G, HBO, pharma, etc.) are now charging five figures and winning a lion share of the bids now.
Not sure why Wan is the focus of this article and Seedance is a footnote. Wan/LTX/open models are significantly behind Chinese closed source models. (And the Chinese have left the Western models in the dust.)
I wouldn't do anything production grade in Wan.
3 of the 4 agents used Wan, the other one used Seedance.