that can happen also with physical voting. I have personal experience (years ago) that I was sysadmin of voting result calculations machine, and I was asked to

that can happen also with physical voting. I have personal experience (years ago) that I was sysadmin of voting result calculations machine, and I was asked to change some numbers to fit them to the calculation system, as some vote counters had messed or lost some ballot papers. You can verify individual physical votes, but in the big picture (which matters) you must also just trust some sys admins.