Yes, it is more precises to phrase it as “interested in CS.”
You can view a history of acceptance rate by gender at Cornell’s School of Engineering at https://irp.dpb.cornell.edu/university-factbook/undergraduate-admissions . Note that in the most recent year, the acceptance rate among applicants to the Cornell Engineering School was 18% for women, but only 6% for men. Women had triple the acceptance rate as did men. This is suggestive a notable preference for women. The Office of Internal Research page linked above, Cornell’s website, and the previously linked article all indicate an approximate 50/50 gender balance across the full Engineering School, which seems unlikely to occur naturally without a gender preference. This apparent gender preference is also consistent with the linked article that mentions 55% female (interested) in CS. Considering CS is by far the engineering school’s most popular major, this is also the approximate degree of female representation that would be required to achieve the existing 50/50 gender balance.
Regarding the apparent discrepancy between the ASEE web page and Cornell’s, your guess is as good as mine. One contributing factor is they are evaluating different years, and the female representation has been increasing rapidly in recent years. Note how different the gender balance was 4 years ago, in the OIR stats page above. There is a delay before the entering student gender balance representation is reflected in graduation rates. Another contributing factor is the ASEE page shows more enrolled students in the engineering school that does Cornell OIR. Perhaps they are including additional categories of students beyond just the engineering school, such as CS in the A&S school, which is not expected to have a gender preference for women and as such as is expected to have a high male/female ratio Women may also may be more likely to switch to a different Cornell college than men, as you suggested.