The Technical Finish tooltip says it gives 15s of Esprit and activates the gauge, but it also says "Standard Finish" in one of the places that should say "Technical Finish", making this look like a copy-paste error. So who knows what the tooltip is actually supposed to say?
Regardless, Technical Step isn't meant to be a replacement for Standard Step; you're meant to put up both. And since Standard Step is a 30s action that sets the Esprit gauge to 60s, this sounds like a non-issue.