I think for the majority of fans this lack of Toyota is quite a bit deal as for the very first time it seemed as if the entire game would feel complete again: Porsche in from the start, VW coming back, it all looked as if FM7 would hands down be the best car collection game of the current console generation. Even without Toyota it still is, but you can't ignore the feeling that "something is missing".
For me FH2 actually feels like one of the most complete games. It has VW, Toyota, Scion, Lexus, Porsche and RUF in it. Sure it lacks all the modern 2016/2017 cars but driving around that game also gives a special feeling: no fantasy cars like Regalia, Rocket, Warthog. No Hot Wheels tracks or cars, even no GT racing cars (which IMO don't really belong in a FH game either). In FH2 it truly feels as if the hypercars are the stars of the game closely followed by the supercars, without too much fantasy or nonsense. FH2 is actually from setting and atmosphere one of the most believable Forza games IMO. Sure there are the 2 Fast and Furious DLC packs but they really belong there IMO and DLC packs with such a theme (or the rumoured Hoonigan pack for FH3) are spot-on the type of content updates that franchise should get.
I hope for FH4 that feeling will come back again and the fantasy cars and GT race cars are left out again.