hello from california.
so, i read the mean rude comment, and i thought 'what an unfriendly jerk!' then i saw the video, and i noticed something...
you clearly know how to hit as far as racket path, unit turn, nice width on your stance etc. nothing weird or 'wrong' with what i see happening ON TOP. however, ON THE BOTTOM HALF (of your body) you are not being 'athletic' in your movement. you are starting to the ball late and casually (i know it's a light hit but...), and are often still getting to the ball once your swing has already begun. that's fine if you are being stretched wide or jerked around by an aggressive opponent, but the guy at the far end is hitting a 55% ball at best. you need to be snappier in your movement to that ball, then set, load, fire, recover. you are casually getting to the ball that's been easily struck but are almost late, still sort of adjusting around during the hit, then not recovering at all, but sort of hanging out where you just were. i do realize this is a light hit though.
on the backhand your movement is even more erratic. on some you stay down through the stroke then recover nicely, but on most you appear tired and are pulling out of the hit and to the right way early, and you are not recovering snappily on most of them (but you do on some so i know that you know HOW to do it).
watch jimmy connors' light hits, there is some footage of him hitting with mcenroe from last year's US Open. he snappily moves to position, sets, loads, fires, recovers. he does not make any extra steps, his feet don't look heavy or undecided, he does not seem tired, and he does not ever over hit.
watch andre agassi's 'light hits' at his current age. he snappily gets his body into position so he can coil and unload. no bs. exactly like connors does but just a lot more racket speed. every shot looks about the same as every other. it's when we get lazy with our movement that our shots start getting 'creative' because we're just not in position.
the shots you missed were because you were not set and loaded in the right position. you were either crowded (bad, slow movement to the ball), or late (not set or loaded or both).
but anyhow, this video seems to be of a pretty good player who has just played 4 hard hours, then turned on the camera. what i mean is, you appear to be tired. moving late. not loading on all the shots. in a mad hurry to stand back up and not able to stay low during the stroke. did i see any crossover steps? not sure. don't think so. your strokes are NICE. really nice. you understand what you are doing man!
these are easy balls that this guy is hitting you. there is no excuse for hitting out of position so often. even on a light hit.
so here is what i would suggest: the experts can chime in here on how to speed up your movement and add 'athleticism' to your movement because right now it's tired looking. second, even for a light hit make sure you have some purpose because right now the balls are going all over the place. when i do a light hit, i am working on something (for example: i don't discuss this with the person i hit with so she/he can do whatever they want but i'll start with hitting all shots to his backhand - again, no matter what he does i am sending it deep to his backhand for several minutes-, then i'm sending everything up the line, then no matter what he does i'm hitting short slices, then no matter what he does him hitting 'high and heavy' crosscourt off both wings for a few minutes....
when i play a match, i can execute because my 'light hits' are always practices, where as their light hits are...an aerobics class or something.
i hope i have helped a little bit.
i promise not to use the word 'snappily' for the rest of the month!
so, the mean guy was indeed quite mean...but i actually agree with him. wait....was that brad gilbert??!