IF you are flying at best glide speed in the majority of single engine light planes made by well known manufacturers, please tell me how there isn't enough speed to flare?
Best glide speed should give you the best (farthest) glide in a no wind situation.
And certainly there is enough energy to arrest the descent at the very end of the flight.
Excess speed might reduce the distance of the glide. AND while you may not need the distance, on the other hand you might.
We aren't talking about flying borate bombers, PBYs or anything else. Just little pipers and cessnas and whatever things the british have.