I don't have any specific context on this company so won't comment on their offering compared to that of Segment, but I do find the "collect everything" approach to be generally bad and undesirable.

What I want, past any sort of reasonable business scale, is a constrained set of specific events that I have explicitly decided that I want to track. I then want those events to be well documented and well QA'd. The approach of "here we tracked everything for you, now just sort through it" is great if you only want to serve small companies who just don't want to do the work to be more intentional about their data, but at any sort of reasonable scale of people touching data this becomes a recipe for disaster.