1) DBE Kn(I), such as Medieval Germans, cannot be overlapped - they always fight on +3/+4 in that respect
2) Mandatory DBE rear ranks are not counted as MEs
3) Knights are no more compelled to pursue pushed-back or destroyed foot on enemy turn - they can keep ranks if they want
4) Most Medieval single element Kn(I) can be dismounted as the most lethal foot around nowadays - Bd(S). (Careful with that poleaxe, Eugene!)
5) Irregular Kn(I) are not impetuous and therefore not a C3 liability
6) They are still knights and get quick kills against Cv and foot on their turn
7) Knights are no more quick-killed by LH or Bw(S), so you have nobody to really fear anymore
If the first line breaks, even Kn(I) can make difference between loss and victory
9) You have psiloi to deal with those heffalumps anyway
10) At 8 points apiece, Irr Kn(I) is the cheapest morale around.