Can't find any info on a definitive Yes there should be a splash screen during boot up?
Someone chime in on the issue?
Found this for 13 but don't know if it will work for 14? as don't want to screw up my boot.
Black splash screen
In Linux Mint the boot splash screen is completely black. This is by design. Once the system is installed the boot sequence is relatively fast. The black loading sequence doesn't look out of place and it looks consistent across all computers, whatever driver you're using. If you'd rather get a splash screen you can select one by typing the following command and selecting mint-logo:
sudo update-alternatives --config default.plymouth
Or will removing quiet from GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
do the trick?