I agree with the others. 210 is not a big deal - they usually run at 170 or 180. Just keep an eye on it. If it starts running hotter than 180-190, you still have a problem.

I had something similar happen at the beginning of 2020 with a little over 200 hours on the clock. For me it wasn't the raw water valve closed, but a failed O-ring in the strainer that allowed the water pump to pull a bunch of air in and killed the impeller.

There was one lingering effect: when the impeller shredded, pieces of it got scattered all through the raw water cooling system. It took 2 trips back to the dealer and then finally me taking it all apart myself to get it cleaned out. Did you get to see the failed impeller? were there lots of parts missing? if so, your heat exchangers need cleaned out or you're going to run hot again. The passages inside those are like 1/8", so any little bit can clog one of 3 heat exchangers that are in the circuit. I also found a small blockage in the plastic elbows where the raw water is plumbed into the exhaust manifolds.

The second lingering effect was a failed O2 sensor. It's tough to say if this was because of this event (exhaust getting hot) or if it's just a random failure, but I got Lean Condition faults when running hard after this event. I replaced the O2 sensor that corresponded with the code and that went away. Pretty cheap and easy, just a pain to have your "new" toy throwing faults and stuff!

If anyone mentions a "paddlewheel sensor" getting clogged - that is only on earlier Raptor engines. 2018 (i think, maybe 2017) and up do not have this easily clogged sensor to detect raw water flow.