Minato's "speed" isn't speed at all
Title is very misleading
the word "speed" is 'not speed'
Explain it in very simple term, or layman language.
FTG is technique created by Minato for himself, using SEAL as point of marker.
When fighting with Raikage & Bee, he mark the seal on Bee itself.
Raikage "lightning speed" is just a jutsu that can be acquire.
Oh One Main thing.
When an ANBU disappeared after instruction, do this means SPEED or What?
Then all those ANBU and other ninja disappeared consider speed?
One scene, when Sasuke on leaving Konoha, Sakura wanted to shout;
then suddenly Sasuke was behind Sakura. IS THIS "SPEED"
Just like when Naruto, Sakura, Sai, Yamato meet Sasuke, Kabuto, Orochimaru;
when Sasuke instantly appeared beside Naruto, IS THIS SPEED.
This list were never end with long list of ninja who can perform this SPEED.
If you do say this type of SPEED is not the same as Minato FTG.
then answer this;
Minato FTG have a combination of 2 type of jutsu, first using Speed,
2nd he use Seal as the marker point of destination.
Likewise for Kamui..2 types of jutsu combine into 1 single jutsu.
Need to re-phrase your title properly and with clear explanation of what you intent,
otherwise each have their own meaning..................SPEEEEEEEEEEEEEEEED..........