Champion Select chat exists for a reason.
I should not have to copy/paste "Role Call. Communication helps." every time I get into champion select. I hate when a team says absolutely nothing and people fumble over who goes where or two people wait til the last second waiting on the other to pick and then they panic if they pick the same role. I hate even more when someone picks something like annie and doesn't say mid or support so someone is left playing the guessing game and almost always guesses wrong.
Stop being afraid to talk to people. 'x pref' takes less than a second to type and even if you don't get it our team now has a feel for where everyone is comfortable. That is a step in the right direction.