Really? Emoji as they are being described here are part of the Unicode standard. If their textboxes blow up on account of stray unicode characters, then their software is crap to begin with. That isn't bloatware, that is bad design.
Bloatware is that desire to turn the web browser into a mail client, text editor, HTML IDE, chat client, music player, video editor, and all-around operating system. Giving full support to standard character sets is well within the core feature set of a program whose purpose is to connect to a site and display text and pictures.
I assume that you also believe the Wingding fonts were the biggest fundamental design flaw with Windows?