How would you readers feel if your dojo brought in a kali expert once a week to show knife disarming training? Would you want that?
Would we want that...ABSOLUTELY!
Albo Kali Silat is taught in our school, so is Kenpo. Most have grappling, boxing and Judo in their tool boxes, also.
A proficient boxer would embarrass most Aikidoka. Judoka want you to "grab their wrist", grapplers will attack you aggressively... Kali practitioners want to cut, stab and destroy you quickly!
Aikido has it's merits, but not all that are claimed here. Why would you cheat yourself, by not training to attain the best skills possible?