The only way that would happen is if you were meeting dead center of the map, equidistant from both starting points. That. Doesnt. Happen.
You, on your epic mount, run to the bunker and wait for your crew to show up. The enemy team will be there before your team because the bunker is on their side of the map.
On Stormreaver, however, it was most definitely the minority that had their epic mounts by the time TBC was released. There may have been a fair number of players that had bought their epic mount, but they were still the minority of level 60’s.
Many of those that bought their epic mounts disappeared soon after due to having been banned for buying gold.
Well how it was on Launch was there was Riding training for every mount type. So horse training = Human rep. Tiger training = Darn rep. You’d have to buy every type of training for every type of mount you’d want i doubt blizzard is doing that again haha.
Bottom left corner, patch 1.13.0
If you know anything about programming and versioning, then you know 1.13.0 would come after 1.12.1 and include anything from that patch minus any changes they specifically remove.
Or you just use the same speed mount as the rest of the group and not have to turn around. It’s not like you need a lot of bag space in pvp for anything else.