I do think L&L are surprisingly talented. Their JW FD was really something else, but right now, they're all potential. Criticisms of their chemistry are painfully valid - they already have a partnership breakup under them, and don't look like they have much rapport. They move together beautifully despite that.
With Khudaiberdieva/Nazarov breaking up, L/L and Shevchenko/Eremenko are the big junior teams going senior for the upcoming season. In the latter case, they presumably would like to overtake Zahorski/Guerreiro by the 2021/22 season.
One of the storylines going forward to Beijing will be if any of the current younger teams in the US, Canada and Russia can elbow their way onto the 2022 national podium and therefore the Olympic team. In L/L's case, a spot might open of its own if Weaver/Poje bow out, but that would also raise at least the possibility of Canada dropping to 2 spots after 2021 Worlds, so that would still mean they'd have to pass Fourner Beaudry/Sorensen. Russia and USA's third spots look more secure; both Zahorski/Guerreiro and Hawayek/Baker have to know they have targets on their backs.