Technically true, though I think the person you quoted was referring to the actual quest you receive. If you get your war-steed before receiving the quest, you can never complete that quest, and that quest is an automatic one as soon as you hit lvl 74.
Originally Posted by Devinish
R5 100 GRD Marevayave - Leader of Riddermarked For Death
R8 100 MNS Fayah/100 LM Siennah/100 HNT Dinenol/102 RK Dhurik
100 CHN Alachas/85 CPT Dinfaerien/60 BUR Dhax/35 WDN Godoric
R9 105 MNS Fayeh (alt Wilya) - Lonely Mountain Band @ Landroval