You know, I don't think that those were his 'stingers,' I think that they came out of his all empowering 'Iron Spidey,' suit
The current Marvel editorial have a great idea of 'if you ignore it, lets pretend it didn't happen.' It'a happened with Sarah and Gabe of Sins Past, Zeke's ending, Tracer, Morluns return, weird Spider Woman thing. Only PAD has touched on Other continuity.
The stingers and Spidey's amped up strength have been very much ignored AND played down, (aside from one, maybe 2 mentions from PAD.)
The reasons I don't think that they're the stingers are;
1st off, the stingers come in random panic, he hasn't controlled them yet
2nd, they've only looked like bone B4, there's no way in hell that he can have metal stingers, and at the end of this story they clearly had a metal look.
3rd, We just saw Spidey turn his suit into molding metal alloy, (a la Terminator 2,) to cover the rock, and stop the mayhem. Surely Spidey could do the exact same thing to have blades Wolvie style, no?
To me, they were not the stingers, for all the above reasons. And I won't argue about this with anyone, as we all know it'll be a bit of a stupid conversation lol