NASS attention is needed here: All Service Chiefs have exceeded their service years

This is an alarm triggered by 9news Nigeria, calling on the National Assembly to look into this record and take appropriate action:

Note that the mandatory Service Year is 35 while Retirement Age is 60. And whichever comes first the officer should be lay off.
This has already been the case of almost all the Service Chiefs.

See below:

1. Chief of Defence Staff

Name: General Abayomi Gabriel Olonisakin
Date appointed: July 13, 2015
Date of Birth: December 2, 1961 (58 years)

Commissioned in 1981
Years in Service: 39

2. Chief of Army Staff

Lt. Gen. Tukur Yusuf Buratai
Date Appointed: July 2015.
Date of Birth: November 24, 1960 (age 60 years +)

Commissioned in 1983
Years in Service: 37

3. Chief of Air Staff

Name: Air Marshal Sadique Abubakar
Date Appointed: July 13, 2015
Date of Birth: April 8, 1960 (60 years +)

Commissioned in 1979
Years in Service: 41

4. Chief of Naval Staff

Name: Vice Admiral Ibok-Ete Ekwe Ibas
Date Appointed: July 13, 2015
Date of Birth: September 27, 1960 (60 years +)

Commissioned in 1983
Years in Service: 37

NOTE:

1. Chief of Defense Staff has exceeded Service Year by FOUR YEARS.
2. Chief of Army Staff has exceeded Service Year by TWO YEARS.
3. Chief of Air Staff has exceeded Service Year by SIX YEARS.
4. Chief of Naval Staff has exceeded Service Year by TWO YEARS.

So, why is President Buhari still keeping them after exceeding Service Year as well as Retirement Age.