WordPress 4.9... no longer allows you to edit any code through their editor. You have to edit it through FTP. This change screwed my site up badly to the point

WordPress 4.9... no longer allows you to edit any code through their editor. You have to edit it through FTP. This change screwed my site up badly to the point where I had it so customized, I basically spent a weekend just finding a theme, only uploading bits and pieces of the database at a time, just to get it working again. I was about ready to switch to Medium.com to let them handle my website... but the did away with custom domains. But it is pretty much now.. I cannot customize anything on WordPress anymore the way I am used to.. and everything has to be done with plugins. I don't mind a few plugins, but there were just some plugins that were unnecessary and I could just write the script myself to handle certain things. So... I am still using WordPress, this move was done basically to protect people from themselves. But I feel it should have been optional.. don't force me to be unable to edit certain files, especially in the WordPress editor itself. I certainly miss the freedom of being able to write scripts and do as I please with my WordPress install. That is why I'm not on WordPress.com and opted for my own website. Not saying I can't still do some of it, but going forward with WordPress updates.. nothing can guarantee that my scripts will work from version to version.