Be honest with yourself: without checking through Wiki or whatever website, had *you* heard of a Scorch in Marvel Comics? Unless you're the World's Biggest Night Thrasher Fan (there are at least four members of that fanclub worldwide, so I dunno mebbe), chances are the honest answer is "no." Because Tommy Ng was a blip of an afterthought on the back page of a flashback in a throwaway comic about an unpopular comic book character in a time when nobody was reading comic books because Marvel was on the edge of bankruptcy.
If you choose to believe that Mo and Jed or whomever went digging through the trashbin at Marvel Comics and spotted some two-bit thug in a flashback panel that really captured their imagination and said "We've got to get Tommy Ng into the MCU --- we've just *got* to," then more power to you. But the more likely explanation is that yes, it is just a coincidence. Like Mike Peterson. Or Tobias. Or Po. And it's going to happen a lot, because the Marvel Comics Universe is a big, big, big place, with lots, lots, lots of characters over at least 70 years. Not even the Marvel Wiki has catalogued them all.
When they discuss examples of AOS introducing new characters from the comics, the showrunners have pointed to Victoria Hand and Graviton in more than one interview. I haven't read of any of them mentioning Scorch as one of those instances. Have you?
I suspect what happened was that a script was devised which focussed on how the different organisations dealt with a potentially unstable 'gifted' individual, and fire creation was chosen as his skill because it was a) dangerous and b) visually interesting. That script was then looked at in light of the Marvel database and they found an insignificant character called Scorch, and decided to use the name as a throwaway reference.
In that particular episode, it was important for 'Scorch' to be killed off for the story, it showed SHIELD were right to keep his powers hidden, and Centipede reckless in encouraging him to come out for their own gain. Had they picked a more well known villain, it would have been a waste to have Coulson kill him when he had to, but without that act, the story would have been different - in fact it would have been a copy of the Graviton episode only shown a few weeks earlier.
In other words, I suspect he was named after the comic character, but always deemed to be expendable, and therefore a waste of a better known character.
