No, for citizenship, under the current rules, she needs to reside in Canada, for 3 out of 4 years.
Don't confuse the residency obligations and the citizenship requirements. They are two different things.
PR: To meet the RO for PR, you must reside in Canada 2 out of every 5 years. If you live abroad with your Canadian spouse, those days will count towards your requirement.
Citizenship: You must live in Canada for 3 out of 4 years immediately preceding your application. Days spent abroad with your Canadian spouse do not count.