Yes, looks driven a bit too chilled out. Quite large angles for a long time, long distance slides. Wouldn't say it looks unrealistic, but for a high downforce plus high performance slicks it does look strange. I guess 120-150km/h is that threshold of speed where aero starts becoming significant as first order effect for tire grip, although it is always significant as second order due to heat and wear it saves by preventing sliding, thats why aero is very important even at Monaco. This looks as if tires don't overheat that much to entirely throw car out of control, or aero does not stall, or some combination of things. It makes it more strange that it could have been done in several curves in a row, tires must have been completely cooked and shredded after this, perhaps even after second turn. IDK, perhaps it could be possible for very hard tire compound, but IDK. I remember in some past updates aero of GT3 cars was adjusted in such way that aero stalling due to yaw angle was very noticeable, I don't remember if it was for GTE cars too.