i also find this very annoying. like how am i suppose to use "0.68..." of a point especially when the event doesnt come around frequently.
i think the best solution for this is rounding up/down to the nearest whole.
i.e if the number is at 0.5 to 0.9 then round up. if it is 0.1 to 0.4 round down.
additionally make the minimum number 1 so you cant get "0" learning points from rounding down.