Yes! Because:
A) They don't already have those.
B) Why give your Fighter the ability to engage 3 people at once when you could have him just go "KNOCKDOWN! KNOCKDOWN, KNOCKDOWN! Oh, you're getting back up? KNOCKDOWN! Oh, there are 3 more people headed this way trying to get to my Mage? Fighter lieutenants, COMMENCE KNOCKDOWN DEATH BLOSSOM!"
/sarcasm
How many knockdowns per encounter do you think we should give each Fighter, to be able to passively handle this whole "I can't really stop you from jogging past me" situation in place of some form of engagement mechanic?
I have neither the time nor the patience to properly respond to this kind of idiocy.
Just pull an analogy out your ass and let him spend several walls of text pulling it apart. If it can be said in ten words, Lephys will say it in a thousand.