They were changed to make it "moar historic".
As for the "historic", it is true that the awl pike was used as a spear with no shield.
The awlpike was used with shields:
"The
ahlspiess, or "awl-pike" in English,
puntone a piatello in Italian and
lance a pousser in French, is documented in the archives of the city of Vienna as appearing as early as 1444 and it is likely that it was adopted by the Austrians from the Hussites who used it in combination with a large shield (the pavese or
setz-tarche.)"
That quotation is from Waldman, J.,
Hafted Weapons in Medieval and Renaissance Europe. The Evolution of European Staff Weapons between 1200 and 1650. 2005. ISBN 90-04-14409-9 (ISSN 1385-7827) who referenced Duriegl, G., Waissenberger, R.,
Das Weiner Burgerliche Zeughaus, Eigenverlag der Museen der Stadt Wien. 1977. Das Weiner Burgerliche Zeughaus is out of print, and I have not yet managed to acquire a copy to give a more direct quotation. However, the work by Duriegl was done through the Civil Armory of Vienna which possesses numerous awlpikes and pavese dating from the 15th century.