Because thoes things are Front end and you think that Steem has ANYTHING to do with that.
a) They have no way of knowing who the witnesses outside of the top 50 even are, unless they do significant amounts of research.
So they have a way.
b) Even when they do choose someone outside of the top 50, there are at least two major reasons why there is a good chance their vote will fail.
So they can't because Steemit won't allow it?
Without Steem, Steemit is completely useless - but in any case I am really only talking about issues in Steemit.com and not issues in Steem.
Several users who have commented on this issue over several posts in the last few days, that I have made, have said that for most of the time they used the system they had no idea how witnesses functioned or what the voting was for - so they just pretty much randomly clicked on names from the list of the top 50 to make up their 30 votes. This appears to be more common than people actually doing research.
They have a way, but they ware unlikely to take it and in any case, whether they have a way or not does not change the fact that the situation is unfair.
One issue, as stated multiple times here already, is that the votes often aren't even logged. The other issue is that the design of the 'vote' button and text input works in a way that is counter to expectation - you type in the name and click 'vote' and then the user's name and a 'vote circle' icon appears. In a large number of cases, people then click the new 'vote circle' button - thinking that they need to do that to vote. The then unvote the account. You can look through the history of votes for probably all of the witness accounts below the top 50 and you will see many examples of votes being cast and then immediately uncast - this is where people unvote accidentally. I catch some of them, but surely not all of them. This is the THIRD hindrance witnesses below 50 face and for no good reason.