In recent years, the Cemu development team has made massive strides. The long-term goal is via a method called "OTP (One-Time Programmable) + SEEPROM emulation."
The term "exclusive" in this context refers to the fact that these title keys are not publicly available and are often difficult to obtain. This has led to a situation where only a select few have access to these keys, and the wider emulation community is left to rely on them. cemu wii u title keys exclusive