Did some testing. You can make it from Spawn to the point where your bridge meets the middle arena with 3~4 seconds left, and hit the exact middle with 1~2 seconds left.
Again, this might not seem like much to some, but understand that 1-4 seconds spent in the middle with invincibility can very well turn the tides, and in my opinion this is just another gimmick I feel needs to be left out. I'll give some examples:
Ex 1: Healer1 dies, so Team2 decides to focus down Dps1 while Healer1 is dead. Respawns are instant more or less, so the healer is running back out as soon as they're up. Team2 tries to CC Healer1 as he arrives back at the middle, but they cannot because he still has a few seconds left of invincibility. Therefore, Healer1 is able to heal Dps1 uncontested, keeping him alive and denying Team2 an otherwise deserved kill.
Ex 2: Dps1 dies. Dps1 sprints to middle, gap closes to Healer2, and limit breaks. Dps1 cannot be interrupted by Team2 because he is still invincible for a second, which is literally enough time to limit break. Healer2 dies to LB and Dps1 gets a free kill because of invincibility.
I have seen example 1 happen in 80% of my matches (I am usually the one trying to CC the returning healer), and example 2 I have seen a small handful of times. There are other scenarios where this gimmick is, in my opinion, giving an unfair advantage to the losing team, but I feel these two examples get the point across clearly.
Again, I feel the need to reiterate: This is happening in the middle of the arena, not in the spawn areas. Another decent alternative would be to reduce the duration of the buff to 5 seconds, down from 10.
