>Open source can enable an end user to fix or at least report a narrow issue.
This is a very small subset of end users that can do that and will want to do that. Even software engineers may not dare to touch the code and seek for workarounds or ways to report the bug with less effort instead. The programming language and APIs can be unfamiliar, there can be lack of context etc. The distance between general computer science literacy and ability to read the code of a large product is very big - experts often tend to underestimate it.
For the majority of other people value of this possibility is literally zero: they would prefer to have a warranty from vendor. There's very little consolation for them in having weak guarantees from community of volunteers that discovered bugs will be some day fixed.
This is a very small subset of end users that can do that and will want to do that. Even software engineers may not dare to touch the code and seek for workarounds or ways to report the bug with less effort instead. The programming language and APIs can be unfamiliar, there can be lack of context etc. The distance between general computer science literacy and ability to read the code of a large product is very big - experts often tend to underestimate it. For the majority of other people value of this possibility is literally zero: they would prefer to have a warranty from vendor. There's very little consolation for them in having weak guarantees from community of volunteers that discovered bugs will be some day fixed.