Okay, can we stop calling people who asked for the suit 'moaning crybabies'?
Here are the facts:
There were 3 extremely popular alternate Spider-Man suits that weren't in the original game - the black suit, the Future Foundation suit, and the Raimi suit. Insomniac has confirmed multiple times that the black suit and the Future Foundation suits are not coming because the black suit is important enough that there needs to be a story around it, and Future Foundation is not coming due to Fox having rights to F4.
For the Raimi suit, however, what they did is they teased it for one of the DLCs by tweeting the release date of the first DLC alongside a picture of the Raimi trilogy's version of the spider symbol (the DLC itself was also released on Sam Raimi's birthday), they did not put it in after 3 DLCs and then told a fan on Twitter asking what is going on that 'listening to you doesn't mean we do what you ask'.
They could have outright said 'It's not coming' like they did with the black suit and Future Foundation suit, which everyone would also beg for if they didn't repeatedly say that they are NOT going to add them. The whole Raimi suit 'controversy' is just an effect of Insomniac being really shitty at communicating with the fanbase.
Some people were being immature assholes about it, yeah, but Insomniac simply handled it badly. I wouldn't be surprised if they only released it because of the shitstorm that they themselves caused.