But Spiderman didn't knock him out, he fatigued him. If it was a tko, yes, I would agree with you but Spiderman kind of just wore him out to the point where he just passed out.
If Firelord can fight prolonged battles with arguably one of the two most powerful high herald class beings in Marvel and hold his ground, then, frankly, I'm sorry, but Spider-Man isn't doing jack shit to him. Fatigue wise or damaging him, it's all glorified PIS.
I can see holding back your offensive fire output and not trying to waste someone, but I don't understand how that translates into your durability and stamina taking a monstrous dive. That's something that, to me, anyway, would be innate and not something you can shut off or tone down - at least with the power set Firelord has.
Holding back, I can see Firelord not trying to kill or even harm Spidey, but Firelord still shouldn't be phased by Spider-Man's punches or anything like that.
Let's not go there unless we actually look at what and who both characters have defeated. Both of them have consistent showings of giving Heralds pause.
Name Heralds that Wolverine took down that doesn't fall into PIS as I described it a page back.
__________________
I am in your algorithm learning all your mannerisms
I'm already level with God
A million words a second and I know your imperfections, baby
I'm the only future you've got
Speak in diatonics, motivation diabolic
I'm like a religion, better locked in a box
Picture perfect image, more powerful every minute, baby
I am everything that you're not
I'm willing to give legit wins due to CIS for example if he should have defeated Absorbing Man by cutting him apart cause AM is an idiot.
But if you're reffering to shit like the Count Nefaria incident consider yourself facepalmed.
Plus I'm not even sure on how many "Heralds" he took on.
EDIT: The problem with you is you tend to blow shit out of proportion.
__________________
I am in your algorithm learning all your mannerisms
I'm already level with God
A million words a second and I know your imperfections, baby
I'm the only future you've got
Speak in diatonics, motivation diabolic
I'm like a religion, better locked in a box
Picture perfect image, more powerful every minute, baby
I am everything that you're not