Yes, [[w:c:wow:#|Horde]] can get [[w:c:wow:#|Aldor]] [[w:c:wow:#|faction]] [[w:c:wow:#|reputation]]. Most characters choose Aldor/[[w:c:wow:#|Scryers]] based on [[w:c:wow:#|class]], [[w:c:wow:#|spec]] and [[w:c:wow:#|rewards]], not Horde/[[w:c:wow:#|Alliance]]. The Aldor may be [[w:c:wow:#|draenei]], but they're not Alliance. However, if you're playing a [[w:c:wow:#|blood elf]], you'll start out at something of a disadvantage with them.