Yes. The intent of the guidelines was to look for younger women with a high long term risk, which is why they used lifetime risk. This means that older women with a high short term risk but a low lifetime risk are not eligible.
MRI eligibility by age. Percent of patients at lifetime risk of >=20% by decade shows younger women have longer lifetime risks. (Polubriaginof F et al. Implications of following the guidelines for genetic testing and MRI use for breast cancer. ASCO 2014)