SEI trend was due to its potential airdrop and if you look at social media like twitter nobody is talking about SEI any more. Their airdrop was not that profitable and that can be the reason many people stop talking about it. SEI is a new Layer1 blockchain and when ETH L2 projects are dominating the market, I am not sure a project like this will get the market exposure or not. The performance of L1 project is not that significant after the hype of L2 so it is not the right time to be positive about SEI.
thats true even airdrop is reward is so low now SEI will just become a market for the VCs that supported it to dump their coin into oblivion I don't think its that good for investment. better settle off wiht significantly better coin out there like the L2 you mentioned that integrate itself with ethereum at least at the time of bullrun when the fee was gonna be so high many people would try to avoid the fee by going L2.
SEI abandoned the community by doing them dirty now the community abandoned them, so i wouldn't be surprised that even in few years this coin will have zero trading volume and even low amount of people using their L1.
after all, why use SEI when ethereum and its L2 exists not to mention the fact that sharding are gonna be implemented.
so in conclusion, don't invest in SUI for too long, its not the best coin to invest for long due to the fact that its already losing community.