Why not? That's a genuine question, not trying to be a smartass. Would a company that raised that much money not be worth its value to be acquired?
Edit: Looks like Instagram had raised 50m before being acquihired. Definitely a much different situation than this one, but it's not outside the realm of possibility that a company which raised 100+ million would be acquihired.
I would not consider Instagram being "acquihired".
See definition from wikipedia (https://en.wikipedia.org/wiki/Acqui-hiring): "...the process of acquiring a company to recruit its employees, without necessarily showing an interest in its products and services—or their continued operation"
Maybe they would try to get acquihired