For eg. People from UK and USA are both english speaking but both have a difference in the english that they speak and write , if these countries want and get some adequate reason as to why a particular word has to be omitted they wud be the ones to decide it. For eg. take into consideration ur own mother tongue…if ur country has it’s origin then only ur country has teh right to do the changes to the script. But on a whole in general no script has ever removed some words just like that but with proper explanation they have modified the language and meanings. Over the years there have been many new words introduced but the old words are not forgotten but merely not used that much.