So now what is the benefit of using FAOFF no. We don't have top speed anymore, boost tactic just recently died. Are they forcing us to not use at all?
It's pretty damn good using FAOFF in combat combined with thruster use. You'll still get (afaik) boost top speed (more than with FAON) as we've now come accustomed to, so will be able to boost away the same when interdicted as usual. That's not been changed, just the lateral thrust 'exploit'.
OP - think that it's a tad melodramatic to say that science has died and kids today will grow up thinking that Newts law has changed. If I'd paid attention to Indiana Jones films and Asterix when I was a kid, I'd expect my current profession to be all whips, chinos, Aztec temples with traps and Gauls swigging magic potions and carrying menhirs. It's more like Dig-Dug.