Till after

You should see the way this college is studying! We’ve forgotten we ever had a vacation. Fifty-seven irregular verbs have I introduced to my brain in the past four days–I’m only hoping they’ll stay till after examinations.

Are the words in bold correctly used? It seems to me that the combination of
till + after is incorrect?

“till after” is OK, and means just the same as “until after”. However, it should be “till after the examinations”.

“You should see the way this college is studying!” is a bit odd. It’s the students who study, not the college.

“Fifty-seven irregular verbs have I introduced …” is an inversion that is noticeably not the usual word order and gives a particular stylistic feel.