In the Spring a fuller crimson comes upon the robin's breast;   
In the Spring the wanton lapwing gets himself another crest;   

In the Spring a livelier iris changes on the burnish'd dove;   
In the Spring a young man's fancy lightly turns to thoughts of love.

(Alfred Lord Byron, 'Locksley Hall')

So the implication is not just that the students are [implied] "lightly" turning to "revolution," but that it is merely another sign of Spring, a student rite of passage (or a courtship ritual) as meaningless as Heidelberg duelling or frat parties.  "The students are rioting, it must be Spring again," that sort of thing.  I even think I might just sniff a subtext about Frenchmen and romance, i.e. har-de-har, Frenchmen are supposed to be so sex-crazed etc, yet here it is Spring and the young men are thinking about (boring old) revolution again.

Yes, I think if it is calculated it is quite a masterly little bit of snideness.  Of course it might just be a culturally semi-literate swipe at a nearly-familiar or misremembered tag line... one can read too much into these things.

The difference between theory and practise in practise ...