Basically if you're getting ganked a Direwolf gank squad. You're going to die(assuming they aren't terrible) if your mount has a gallop less than 120%(lizards can make some plays through mobs, but imo it's risky).

And if out get hit by a mob or player when they are mounted up on top of you're dead.

There is this misleading stat "Time Until Gallop", that well you'd think that's the time it takes until you get the gallop move speed, which is partially correct.

If you're on your mount, and you're sitting still then move it takes that amount of time it says in the stats.

So a Stag is 2 seconds I believe, which is very short this is great if you spot someone and need to mount up and split, but here's the part that most people don't know(or at least most people i ask).

If you get tagged by a mob or player it takes 5 seconds + the amount of "Time until Gallop". So that basically means on a stag it's 7 seconds until you get the 105% move speed bonus. This isn't written anywhere. But you can being 50%+ slower than gankers on mounts basically means you're dead.