More serious is that when I try to play a distant Lion move beyond the Pawn (e.g. l d6-e4) it does not immediately accept the move, but still wants me to choose between the simple move and "l d6-e5; l e5-e4", highlighting both e4 and e5 to make that choice.
That's not very serious. In most cases, the move that captures a piece will be more desirable than the move that doesn't, and the player may appreciate the reminder that he can capture the Pawn while moving across its space. Also, some players may find it more natural to first click on the final destination, and then to click on the space where a piece may be captured en route. Since the exact same move will be entered no matter which order the spaces are clicked on, there is no need to enforce a certain order of mouse clicks on the players.
That's not very serious. In most cases, the move that captures a piece will be more desirable than the move that doesn't, and the player may appreciate the reminder that he can capture the Pawn while moving across its space. Also, some players may find it more natural to first click on the final destination, and then to click on the space where a piece may be captured en route. Since the exact same move will be entered no matter which order the spaces are clicked on, there is no need to enforce a certain order of mouse clicks on the players.