Ok first of all,your example with Kirby isnt the same thing,smash bros is a crossover game mostly between nintendo characters,tekken 7 isnt a crossover and its canonical game,in which Akuma is canon,Harada abd Ono,the heads if both tekken and street fighter are best friends,they could have thrown any other street fighter character in the game especially against the strongest people in tekken,someone else brought this thing before about the subject,the creators having their characters being even or comparable as such,plus another thing to add,there us no point in showcasing feats already by Akuma in tekken again,its not an entirely new character or different,so likely its suppose to be comparable to the sf counterpart
Second of all,as i said earlier,Heihachi survived it by sheer durability,he doesnt have like gouken or gill an ability to survive it,if Heihachi did it Jin should likely as well and even then,if you didnt read in tekken 4 Kazuya tried to attack Jin soul and take it,in his ending he succeded,but after beating Jin in his ending,which he didnt got there as Jin won,so he has resistance to that
Third of all,Ryu only projectile is the hadoken only and thats barely enough to take Jin oit from the sky,plus the lasers counter that,Ryu never beat Bison on his own,only time he did was in SF5 and after Bison was cut off from the black moon amp and weakened by Nash and sacrificing himself before Ryu came out and used the mu no ken,as for Dhalsim,i doubt he would use all his abilities especially teleportation on Ryu,he trains with him,he has no reason to fight for real with him,so experience with teleporting characters isnt existing or if any,he never won against one alone,also his ability isnt copying,its taking their power they got and add it to his own,on short,Jin can take the satsui no hado out of Ryu and add it to himself or any other power
Fourth of all,waiting to see how he has better AP,the forms dont have any given multiplier or big of a gap in power,mu no ken has more or less zero and Evil Ryu isnt canon,Ryu never transformed into Evil Ryu ever,at best he tapped into its power on ocassions and for a short time,so no he isnt canon no matter how much you want
Fifth of all,Jin won 3 tournaments officially,Ryu just one and that was by a cheap shot at Sagat,hardly will call that a win,plus he defeated exoerienced fighters as Wang,Kazuya,Heihachi,Jinpachi and Ogre which had moves from many fighters around the world,Jin by far shown to be a better martial artist then Ryu given his victories and acomplishments in tournaments,also Jin has parries and evasive moves and lots of stances,not to mention he learned 3 fighting styles in just two games from his series,Ryu knows just a style and with predictable stuff,like uppercuts and fireballs mostly
Sixth of all and hopefully the last,Mu no Ken(Pon) doesnt grant any nigh invincibility,if it did then it should have displayed such stuff,Akuma beat that Mu no Ken Ryu and wasnt even considered an equal by him,Ryu also stated he will go all out,it didnt matter to the fight at all,also mu no ken sealing evil stuff was done only on characters with evil energy/ki,the devil gene is a genetic supernatural thing,completely different then whatever the evils he sealed,plus Necalli returned and didnt die at all,he faces Akuma later,Bison appeared in that guy story with powers like him,as some sort of soulless thing with no body to possess,it didnt seal anything and if that is an ability of the mu no ken,then honestly it didnt do a great job at all,also Jin used telekinesis to blow up a motorcycle from a distance and choking when the opponents are most of the time beaten
Sorry but as i said and also told in the last Jin vs Ryu thread,Jin got this,he has more impressive stuff and better things overall,Ryu is just overrated whenever i see him in debates anywhere,he is strong and cool as a character,but he doesnt compare to Jin standards