Your speculative scenario has actually happened, but on a significantly less computerized Boeing 737, in 1978.[1]
In that case, the aircraft touched down, reversers were deployed, a runway obstacle (a snowplow) appeared, and the pilots attempted to go around. They got airborne and cleared the obstacle, but as they lifted off, the "squat switches" on the main gear opened. One of the reversers was still deployed, and with the squat switches open, was no longer powered, and could not retract. The aircraft was uncontrollable, and crashed.
In that case, shutting down the reversed engine would likely have been preferable, although if we're doing counter-factuals, telling the snowplow driver about the airplane's revised arrival time is your go-to move, I think.
In that case, the aircraft touched down, reversers were deployed, a runway obstacle (a snowplow) appeared, and the pilots attempted to go around. They got airborne and cleared the obstacle, but as they lifted off, the "squat switches" on the main gear opened. One of the reversers was still deployed, and with the squat switches open, was no longer powered, and could not retract. The aircraft was uncontrollable, and crashed.
In that case, shutting down the reversed engine would likely have been preferable, although if we're doing counter-factuals, telling the snowplow driver about the airplane's revised arrival time is your go-to move, I think.
[1] https://en.wikipedia.org/wiki/Pacific_Western_Airlines_Fligh...