Thankfully the savants seem to have more experience on blown enjine handling than one named after a RR hair dryer.
The taxi is more than enough to stabilise temp and clear oil after a well planned minimum power approach by an experienced pilot who can do it without wild power gyrations, by the time one is at the bay the engine (s) will have been cooling gradually for some 8 minutes in the descent/approach/ taxi.
More than enough "turbo run down time" by any standard.
Perhaps one should read the Garrett treatise on turbo handling for ALL internal combustion engines.
??? should we let the TPE 331 idle for 2 minutes after on blocks as well, it has oil and bearings, personally I shut them down ASAP less noise for the ground people and saves fuel, BTW it doesn't hurt the engine.