Hãh?! EtreCheck has been 64-bit for over a year. The version I'm using (3.4.6) was installed 13 months ago; it also has the option of being openable in 32-bit mode.
You would not recognize today's Etrecheck and as Artie pointed out I wasn't worried about Etrecheck being 64 bit it was a variety of other apps and portions of apps that Etrecheck was reporting as being 32 bit.