LSF got a big boost from Perfect Night, and their upcoming comeback is getting everyone excited. They're in a great spot with music that's all about empowering women, which will never make people bored, and their songs is also something the general public can enjoy. They won't have to worry about changing their songs or style over time to match the members age.
Compared to other top 4th gen girl groups, LSF hasn't reached their full potential yet. They're like a ticking time bomb, waiting to explode and rise to the very top because people didn't think they would compete for it. And they're also really have a very strong fanbase with so little success stans to begin with.
Not to mention that Source did a good job making sure everyone knows all the LSF members. It works really well especially for Eunchae – she's way more popular now compared to last year. Their individual popularity is growing faster than other girl groups in a short time.
Source obviously have learn the perfect songs for them after Perfect Night's success. Even though they were overshadowed much in the past two years by their peers, this year, they'll shine brighter than everyone else. It's their time anyway to take the throne, as it's keep passing from one gg to another for these past few years. At this point, it's already a tradition.