No. Sun appears to have owned dtrace, and if they do then Oracle now own it.
The interesting thing, as I see it, is the blog implies that dtrace is going to be released as CDDL. Seeing as that's incompatible with GPL, it means that Oracle will either be unable to distribute, or will be forced to distribute the source on the same medium as the binary (due to a quirk/bug in GPLv2, they will NOT REPEAT NOT be able to distribute compiled kernels electronically eg on the web).
Or force all customers who want to use it to compile their own kernels.