Not many astute business people are going to gamble their future on free. Free and open software has a few successes, but there are at least 100x examples of failures where development stopped suddenly due to personality conflicts, loss of interest, etc.
This is only partly right, by focusing on 'free' you miss the real point.
Your second comment gets closer, and nicely shows the importance of
Critical Mass in the Open Source arena.
(There are also many commercial EDA tools that are no longer with us. Being 'not free' is no guarantee of longevity )
Do you use Chrome, Python, Eclipse, OpenOffice (or variants) or GCC ?
Those are all open source projects, that
have reached critical mass, and are widely used by people in business.