Not sure if that is a good analogy. I do remember the event. Horrible. Just horrible.
The portrayal of it in “From The Earth to The Moon” miniseries was pretty wrenching, IIRC.
I merely point out that astronauts have burned to death on the launch pad before. Even before fueling.
If they’ve done sufficient risk mitigation (and I imagine they have) then this plan isn’t necessarily bad. But I’d be nervous being strapped in the seat while they carefully pump rocket fuel into the thing. What could go wrong?