Mastery certificates are a good guide to set up your skills for a specific ship. However, you shouldn’t follow them to the letter as they can give you very stupid skills to train for very little use. Also, please note that all certificates might not interest you for mission running.
IIRC, some Battlecruiser certificates with talk about Command Bursts, which you aren’t in interested in for missions, so no need to get those skills up.
What to train from those certificates is up to you after that. If you notice that you’re lacking some efficiency in an area (maybe your guns don’t shoot far enough ? Or your drones can’t get your rid of smaller ships fast enough ?) and then check the certificate that could interest you. It can help you with your skill plan
And as said, don’t follow everything being said… you don’t really need that Ladar Sensor Compensation V if you’re not encountering ECM ships, and even that you could get way better skills up just during the time you’d need to get it to V.