Considering RBH took two leaders with full freedom and close to none support in mountains i don't feel that they did much wrong today. Rogla attacked early on the first climb and got in the break, Lipo was strong and could bridge with the aliens over the penultimate climb. So far IMHO this was rather perfect. On what IMHO went wrong, for RBH, Jonas had no clue on what to do after bridging and both Jonas and Pogi hence decided to wait for their teams. Unless i guess RBH would pull and here i feel that it was the right call, not to do that or wait for Onley to return, to act with Lipo, considering he felt strong.
So in the end RBH raced tactically sound it's Jonas who stalled and send Matteo ahead and after ridiculously strong UAE and Visma spoon feeding their leaders over the ultimate climb. Here i feel that RBH coudn't really do much about it. In previous days they secured a buffer in terms of white jersey and Lipo advantage over Onley, so they could afford to lose some time today.
As for stage 19, Lipo likely on Onleys wheel and Rogla likely again in the break, if the legs to allow for it. We'll see.