They don’t make “discrete jumps” as in teleportation. They exist stable in discrete energy levels, but that doesn’t imply things don’t move continuously.
So this was before airbus bought it from Bombarider.
The original deal was a 51% stake in the company with the option to buy the rest within a few years. This was in exchange for building the C series as it was called inside their US facilities. Since it would be American built, there’d be no import tariff.
Then when the deal settled, airbus very quickly chose to purchase the entire program from Bombardier. That’s the deal we know to get the A220.
A real number is the set of both rational and irrational numbers. Nothing about continuous anything.