That's good to know, however some milestones are extremely difficult to achieve, namely the 1GHz Mark in the 'Hardware Tycoon' campaign (I'm pretty sure the only way to achieve it is to spam out CPUs to get CPU level up). It would be great if it was made a little easier (maybe by delaying the release date of the Inlet Tetrum 7 by one month).
Viewing post in Competitors showing up after turning them off
That's true, though I can say that it used to be even worse...
All milestones are possible to achieve, but some of them require you to focus all resources in order to stand a chance, so it's a thin balance.
I will tweak competitors' release dates in 0.3 as it will allow more flexibility, and it's not like the bonuses from industry milestones will be life-changing either way.