Don't be obtuse. The grandparent poster was talking about the problem of being locked into an individual vendor's platform - a problem which does exist in many market sectors but can also be mitigated by the ancient strategy of not putting all your eggs in one basket [1]. Defining a problem out of existence is not really illuminating.

1. This is a metaphor, in case anyone else is feeling pedantic and wants to challenge the notion that eggs are commonly transported in baskets...