Flyer172r,
There are no hijacks...only natural thread progressions. An endorsement has never been a requirement to log flight time. It is only a requirement to act as PIC, and nothing more.
Acting as PIC is not at all the same as logging PIC.
The requirement for the various operational endorsements (tailwheel, high altitude, complex, high performance, etc) are found in 14 CFR 61.31. These are required only if one is to act as Pilot in Command.
Logging regulations are found in another regulation, 61.51. Specifically, 61.51(e) allows the logging of flight time if one is rated in the airplane and sole manipulator of the controls. Rated means category and class. If one is going to log time in a single engine land airplane, for example, the category is Airplane, and the class is Single Engine, Land. The issue of an endorsement is irrelevant, as logging time has nothing to do with acting as pilot.
One may log time as PIC in a high performance, high altitude, complex, tailwheel airplane while one is out of flight currency, doesn't have a valid medical certificate, and lacks a tailwheel, high altitude, high performance, and complex endorsement. One does not need to act as PIC in order to log PIC. Some feels this represents an inconsistency in the regulation, but it really doesn't. Logging time shows operational experience...indeed if one has been responsible for flying the airplane, handling the controls, operating the aircraft, then logging PIC in accordance with 61.51(e) is reasonable.
If one lacks the necessary endorsements, one may manipulate the controls, but still requires someone legally endorsed and properly trained to take the final responsibility for the safe operation of the aircraft, and legally act as the pilot in command for the flight in question.
To take it a step further, if pilot A is manipulating the controls under day visual flight of an Arrow and lacks a complex endorsement (but holds a private pilot certificate with airplane, single engine land ratings), he or she may log the time as PIC. If pilot B, who does hold the proper endorsements and IS the pilot in command of the flight, does not touch the controls, pilot B cannot log the time. Go figure. Logging pilot time and acting as pilot are entirely different subjects which should not be confused.