Any perceived design disadvantage gets overshadowed by the benefits derived from massive adoption. I think embedded developers might find VxWorks easier to work

Any perceived design disadvantage gets overshadowed by the benefits derived from massive adoption. I think embedded developers might find VxWorks easier to work with but when they have to design something from scratch for it instead of just going with Linux which might already have everything ready (even if half-baked) ends up being the common choice. I think there are space for both (evolutionary and design-lead approaches). They just will be playing in different markets.