Liberty Freeze Tuition through 2021-22 6 years and counting for online 3 years and counting for residential https://www.liberty.edu/news/2020/09/21/another-year-of-frozen-tuition-maintains-libertys-mission-to-keep-a-christ-centered-education-within-reach/
Your question should be directed to one of the IT/IS/INFT faculty members. https://www.liberty.edu/business/faculty/
Whenever I see these long-term tuition freezes all I can think of is that they were over charging for years.
...or maybe they are just fulfilling their Christian mission. Liberty's tuition, undergrad, grad, residential, and online, is lower than many other schools that continue to increase their tuition annually.