They might just try a cold pull or two before changing the nozzle. (Depening on the printer. On my Ender 3 Nozzle swaps were a no brainer - 2 minutes, on my current SV08 they are 15 min of work and 45 min of soaking the old nozzle in Isopropanol to get the thermistor out without ripping the cables)
https://xkcd.com/37/ oh wow, I need some mind-bleach now.