Sure, but sometimes the devs just can not reproduce the bug (as happened with unclickable airfields in MP) or isolate the reason of it. The devs just physically can not spend as many hours in game as the whole community playing with different settings, drivers, etc.
E.g. the unclickable airfields bug was fixed by Monday afternoon Moscow time after Kanalkrank reported the reason only 12 hours earlier here
http://forum.1cpublishing.eu/showpos...5&postcount=26
Without this fortunate find we would probably have this bug for months.