i wouldnt consider ai's input in a basics go mistake video. If you can utilize the position after the kick, so be it. But most of us would get an undesirable position after the kick. Therefore considered a mistake. If LeelaZero and therefore 9Ps doing it, then ok. But we all probably wouldnt even understand WHY they are doing it. So replicating it shouldnt be done carelessly for

The problem with this is, that blacks corner is probably not as strong as you think. If you attack from H17 side you guide white to the corner. White may attack now around d15 and/or utilize c17 weakness. your corner is weak as it stands and you dont need to diminish eye space on the side, because there isn't much space to beginn with. Usually you will not actually kill alot of stones in go. Most of the time you want to guide them to life favourably for you. Meaning white may live, but not without giving you a great corner and probably strength/influence on the side.

Even after white plays H17, their base is already quite cramped on the side--they can probably hope for just one eye on the side, which is not enough to live and they'll have to run out to find life in the center. So it's not like white has solved all their problems by playing there, or black has lost all hope of containing/killing the group (or getting profit in the chase). It could go either way depending on context and how the game goes--the sequence feels like an even/joseki sort of exchange. Without black's strengthening move at D14, though, the corner stones look a bit lonely...if black plays at H17 instead, white may get a nice attack going around D14. Maybe black will get the corner, but in the process white will get outside influence and influence on the upper side, which benefits them (and their original stones live anyway, so it makes your move to deny their base look kind of silly since it just amounts to securing a few points on the right side). The direct 3-3 invasion at C17 is also an option, though I think black wouldn't mind that as much. Just my impressions, I'm also not super strong so if a stronger player disagrees or sees something else I'd appreciate the correction.