Yes just about any symptomatic illness is going to lead to hospitalization and complications during pregnancy.

I understand how the language on the CDC page you cited may lead you to believe that vaccines are conclusively recommended, but take a look at this page from the CDC [1] (updated August 11th) for a more balance appraisal. They say that evidence about the safety is "limited" but "early data" is reassuring. Almost all of the links on the page you cited are to ongoing trials. It's a misrepresentation of science to say that the recommendation to vaccinate pregnant women is conclusive.

And if we're trading anecdotes, my wife's OBGYN advised her not to get vaccinated yet, because it's unclear what the long-term risks are for mother and baby, and because it's unclear if vaccination provides any additional benefits for mothers who have acquired immunity through natural infection.

If you can provide any citations to primary sources supporting your claim that vaccination is conclusively recommended I would appreciate it - I'm keeping an open mind here.

[1] https://www.cdc.gov/coronavirus/2019-ncov/vaccines/recommend...