nope they are not cheap 
but first trust is relatively cheap(er) compared to my favorite KraneShares ETF - KSTR, which is plain out extreme.
KWEB → 0.76%
KESG → 0.4%
KSTR → 0.82%
For some reason KSTR was omitted when they were adding KraneShares to trading212, I requested it here but I am completely baffled about how they respond and add some shares in 15 minutes and some not even after a year…
edit: side not KSTR is very different strategy compared to KWEB/FDNI or this thread as in BABA