Is their assessment correct? If so, how comes that we got DTrace in 2019 and now eBPF ported to Windows? Are they trying to consolidate all tooling into one platform?
Most people here have probably seen Bruce Dawson's performance analysis and debugging posts. WPA/WPR are probably the only user-friendly (ish) ETW applications and even those are not that easy to use.
So yeah, Windows has had powerful tracing and inspection tools for a while, but few people know how to use them well.
As far as why they are doing DTrace and eBPF, I think both of those fill some holes that ETW doesn't. Mainly dynamic tracing and instrumentation, but I am sure there are other advantages I am not thinking of as well.
They could have come up with another hopelessly complicated Microsoftie framework to do the same things, but it's probably a good thing that they didn't.
Visual Studio's own Performance Profiler (Alt+F2, Ctrl+Alt+F2) also uses ETW - just more streamlined, better UI - but once it collects a bit too much data, it just can't handle it.
Yet, in a typical Microsoft way, if you want to use that Message Analyzer tool now:
>Microsoft Message Analyzer (MMA) is being retired and its download packages removed from microsoft.com sites on November 25 2019. There is currently no Microsoft replacement for Microsoft Message Analyzer in development at this time.