It's crazy and I don't care that he might feel hard done by, the law is an ass in this case.
If instead of your 3 point fine and £60, you were hit with 5 points and £100, you'd get no sympathy from anyone if you started "But, it's not fair...". It's only introduction of the word "flogging" that makes your point. And it would be absurd to flog anyone for a speeding offence at any time.
That's not the point though, if the judge had not imposed concurrency of sentences then he'd have gone down for 9 and a half years as that's what all the sentences totalled up make.
Edited to change 5 years to 9 years.