In an actual fight, obviously, you won't have time to take a full chamber for your punch, or cover your whole body while appling a block. You're not going to move in the classical "I" pattern, and so forth.
However, someone who practices the kata, and uses the opportunity to practice the technique in the most perfect way possible, will be stronger, better balanced, have better timining, distancing, etc., than someone who did not, when it comes to applying techniques in an actual fight.
The practitioner who takes time to practice an outward block by crossing the arms, and covering the whole body, will develop more strength and flexibility than someone who simply raises an arm in a very compact motion. The practitioner who takes time to take the full step, using the entire lower body to propel the upper, is going to have a better sense of balance and movement speed than the person who doesn't practice it in such a way.
However, someone who practices the kata, and uses the opportunity to practice the technique in the most perfect way possible, will be stronger, better balanced, have better timining, distancing, etc., than someone who did not, when it comes to applying techniques in an actual fight.
The practitioner who takes time to practice an outward block by crossing the arms, and covering the whole body, will develop more strength and flexibility than someone who simply raises an arm in a very compact motion. The practitioner who takes time to take the full step, using the entire lower body to propel the upper, is going to have a better sense of balance and movement speed than the person who doesn't practice it in such a way.