Hello friend,
This is good tech, and definitely a strong option for Lao.
That said the title saying "jails" is disingenuous as it implies the opponent has no options after j2 is blocked. The term "jailed" means they cannot armor or backdash. Since they can, this block string has a gap, which by definition means it does not jail.
Furthermore, I believe any character can backdash this by doing a delayed backdash. You will know a delayed backdash is performed because the "Reversal" text will not appear at the bottom of the screen. However, doing a delayed backdash will lose to tele1, so Lao will still have options against opponents who employ this.
Love,
Dizzy
