Problem is that the last Liquid roster just clearly wasn't working. They had their highs, but for most of the season they were really off and anyone looking at their games could see that. Never felt like well functioning team that could consistently win. Doesn't really matter how good players you have on paper if the team just isn't working.
This new roster on paper is weaker ofc, but they brought in core of 3 who are all solid and especially Keiko has shit ton of potential. And even individually speaking I don't think Mistic/Enzo will do any worse than Soulcas/Redgar. Only duelist is clear downgrade on paper. On paper the new team seems way more functional because of existing core who were performing consistenly well even if it was in tier 2. And one of the outside-looking-in clear problems of Redgar's and Sayf's inability to work together is removed and they kept both nAts and Jamppi who not only are good individually, but also seem good for good team mental.