Those people who complain might try changing their perspective. Instead of complaining about it being a burden, look at it as a challenge to improve yourself. Got punted from pole position in T1 and now back to last? You got the speed, let's see how far up you can make it. Those tracks are challenging and most are well aware of what happens on L1 T1, adjust your line, it's not always right to defend your position.
I often get matched with a certain player who qualifies pretty well but takes very risky and aggressive passes. At suzuka, he tried an outside pass at the hairpin, cut in hard and basically put my front bumper into his door, he went on clean in 10th place and i got a 10 sec penalty, dropped to last but later passed him. Yesterday he qualified 5th I think? Final lap he bumped someone at T1 Monza and he had to slow way down, dropped somewhere below 10th. A few people in that room acknowledged that he ruins a lot of their races also. He's got good points for the season but seems to lack respect for other players, very much a "pass you at any and every turn" type of driver. Sorry for the rant.
To answer your question, I believe the thinking behind all the complaining is due to high expectations.