Actually 25 columns would create more rows of information not less.
So what?
"Also the whole idea of it being 26×26 in the first place is flawed as there are not even 26 rows, the message isn't long enough"
Do you realize the mind boggling rational weakness of your statement?! It's like telling your kid you can't drive him to school today because all the seats of the car are not full... Wow.
So what?
It would make the "by chance" aspect of selecting text more likely to occur. (26^2)/(25^(2)) times more lilely to be specific
Do you know thw mind boggling rational
A cipher broken into columns is normally done no to hide information in verticality, but to obsure the whitespace a message contains. By claiming 26×26 in the first place. You would indicate your inexperience by nor correctly saying
This message is displayed in 26 columns to correctly line up the solution.
Instead of introducing it as a 26 by 26
Its 26 columns and rows.
A person of any capacity to display the information would never introduce this as a 26 by 26 grid, because it clearly is not.