Klopp was going for the draw. His plan got scuppered when Keita went down. And we almost did get a draw in a very tough match.
His plan was scuppered by his poor use of the subs bench. It was certainly too late, energy/concentration/mistakes wise on 87 minutes to be making his last sub. Also the choice for me was poor, but that's less certain. Think it should have been Shaqiri.
On the latter point, have we been watching the same Shaqiri? No short term individual magic? Even in his sshort time here, look at his short term influence at Leicester and the moments he produced against Southampton
Him being left footed is no more a problem than Sturridge being left footed. Less so, even. He can adapt to playing left sided if needed, in a sort of Coutinho role.
Personally wouldn't be surprised to see Keita's next few appearances being in that position on the left, as Klopp tries to rehab his ability to play responsibly in a midfield three