Maybe. Emotion often overrides sound logic. You'd have a different opinion if you had a loved one murdered by some thug who walked on a previous conviction, overturned on a technicality. That's a far more likely scenario than yours.
Most people who get off on technicalities are set free because the cops and the prosecutor didn't do their jobs or abused the rights of the accused so as to render the evidence inadmissable. In those cases, the fault lies with the prosecutor and cops.