John Semper, the producer and story editor for the 1994 Spider-Man animated series gives some insight of Avi Arad's actions behind the scenes. I'm only including the most direct portions concerning Arad:
Avi Arad Not Interested in ‘Spider-Man’ Joining ‘The Avengers’
‘The Amazing Spider-Man’ producers Avid Arad and Matthew Tolmach discuss the difficulties in bridging Spidey’s universe with that of ‘The Avengers.’
MIKE FLEMING JR said:EXCLUSIVE:
The film is being produced by Avi Arad, Ari Arad and Steven Paul.
Wait, what?! I'm not sure about you guys, but I'd much rather see the Sinister Six taking on Spider-Man instead of finding "redemption"!
However, The Amazing Spider-Man 2 produce Avi Arad believes that we'll all love seeing the villains find their way back. Read on for the bizarre details...
Rothman wins, but they're both scumbags.
I have particular dislike for the way Raimi was dealt with by Sony, whether it was Arad or not. Not only did they trample SM3, but the link on the previous page just reeks of how awful the development for SM4 was, saying on the one hand that they were solely dedicated to making it, and then admitting that the reboot was started about half way through the process.
'Spider-Man' Producers Nix Multiple-Studio Crossover Suggestions
Spider-Man teaming with Marvel's "Avengers" would be a stunt that isn't necessary until "we've run out of ideas," say Avi Arad and Matt Tolmach.
'Spider-Man' Producers Nix Multiple-Studio Crossover Suggestions
Spider-Man teaming with Marvel's "Avengers" would be a stunt that isn't necessary until "we've run out of ideas," say Avi Arad and Matt Tolmach.
Avi Arad Not Interested in Spider-Man Joining The Avengers
The Amazing Spider-Man producers Avid Arad and Matthew Tolmach discuss the difficulties in bridging Spideys universe with that of The Avengers.
Does anyone want to see Spider-Man join the Avengers? I sure don't. Now I would like to see him cross over with the rest of the MCU, but not every one needs to be an Avenger - Dr. Strange included!