When launching Minecraft, or chaning language, a progress bar with the new Mojang Studios logo is showed, and before the new logo was released, the Mojang logo was respecting the GUI Scale, making itself bigger or smaller depending on your settings.
This is not the case anymore, the Mojang Studios logo isn't respecting the Scale but the progress bar does.

Steps to reproduce:

1- Launch Minecraft

2- Change the GUI Scale from the Options menu

3- Change the language

4- Click "Done" and you'll see the Mojang Studios logo will stay the same size but the progress bar will change it's size