The first call is always about seeing if you even know that there’s a good amount of acting going on from both sides. You play your part and you’ll get to the technical interviews. People have a lower threshold for acting as you progress in the interviews and you can say more things that clearly aren’t good to say. (I.e. anything that demonstrates you don’t tolerate bullshit)
No one is complaining about this round of interviewing because it’s not a real issue or obstacle for anyone.