Even YOU could have handled these dick "sizes" with no problem at all for 30 minutes while watching Netflix.
I think you are one of those users who want only some huge cocks to be used in scenes. But I dont share that opinion.
1) Even these russian guys have big dicks, at least by europen standard
2) Huge dicks make a scene worse mainly because only fex girls can take them really deep, so that you can actually see it moving inside a girl. In general, Huge dicks are moving less just not to hurt the girls
Of course there are exceptions, I have said it multiple times here, there are some girls that can take it, but they are very rare. Girls like Arwen Gold, Anna Deville or Brittany Bardot, with very well trained asses.
But in general, most of the girls can perform better with "normal" porn size of dick. I think that they enjoy it also much better which can result in overall better scene, because the girl can be more relaxed.
I dont care about a scene where there is huge dick like for example Ed Junior has and doing DP with another huge one and the girl is just "trying to survive" and the guys are moving 2 centrimeters in and out. Just for sake of seeing that dick inside. Thats not why I am watching porn. I watch porn because I want to see girls enjoying it and having deep passionate sex.