I dont really agree with that haha. Is steph curry now using contacts, athletic enhancement? Yea. is it a big change, nah. But for someone who can't see very well (like you and me) contacts are going to have more than a neglible difference. But if you gave everyone contacts they'd not benefit nearly as much as someone who needs them.
I think if i repeat the drill and get 6 reps (b/c i expect +1 rep from adaptation) that's my baseline. If using the inhaler takes me to 10-12 then i need to figure out why i'm getting such a large benefit compared to what most ppl would get, maybe +1-2 rep since they've reported it hasn't shown performance benefit in studies. Read that on wikipedia last night so i dont know much about it at all. For performance athletes in running sports where every ms counts, maybe that's enough to change the result but still fairly minor in the big scheme of things.