I too received a pop-up offering a trial of Avast's Easy Pass progam. Like you also, I had already been using Roboform and I was toally shocked to see that well into the installation process that Easy Pass had uploaded all of my Roboform passwords to an online server.
I have written to Avast support to inquire as to how this online "account" can be deleted from the server since it is something that I neither need or want. There is reference to the fact that the account can be deleted but no instructions as to how this can be accomplished. I have uninstalled Avast Easy Pass and reinstalled Roboform which only stores info locally on my computer but am still uncomfortable about personal info that has been uploaded without due warning by Avast. Like you, I too expected more from AVAST!