The funny thing is that in CSGO you can't exactly shoot and move at the same time either.
There is a bit of elitism.
Also, take a game like dirty bomb which makes use of both hipfire and ADS and that chart is a joke. Dirty bomb has tight hipfire and accurate/slow movement ADS, and both fill separate roles in the game. Hipfire is useable at all ranges while ADS has an edge at long range and hipfire has a huge edge at closer ranges.
The chart is also a grossly oversimplified explanation. You can have more complicated movement and "comeback" mechanics even when you are being shot first. The first shot has the advantage whether or not ironsights exists though.
Now, personally I would like to see star wars battlefront with tight cones of fire with hipfire. But not because I think ironsights are terrible in themselves, although they are implemented in a fashion I often do not like.
Here is dirty bomb:
https://youtu.be/3TXTijvheBA?t=115 ADS + IS working hand in hand.