I'm speaking a little out-of-school on this, because my primary art (Nihon Goshin Aikido) is a close cousin to Aikido - but I've had some playtime at Aikido dojos (both classes and seminars), have taught students who came from Aikido, and have a moderate understanding of the art and the issues.Hello
Over the years I have seen more scorn poured on Aikido as a martial art than pretty much any others. This is apart from the qi and kiai masters and macdojos.
It seems that people are always calling the art out for being impractical etc. While other arts, that maybe equally impractical in some ways, escape such criticism.
I guess the criticism may be caused by:
Flashy nature of the techiques.
Personalities like Segal claiming it is effective and/or superiour to other arts.
There is no resistance involved
Again, other arts can be guilty of the above but dont seem to get the flack that Aikido does.
There is also a gentleman who after many years of training in Aikido has created a whole youtube channel about leaving the art to study MMA.
This is one way of dealing with the issue but another would be to look into the underlying issues and try to solve them.
So, if you were asked how would you change Aikido, would you
Change the strikes for more realistic ones?
Introduce some form of resistive training?
Make all the movements smaller?
I know that some practioners have already played around with their aikido and come out with some interesting stuff.
What do you think?
I'd say yes to all three. The stylized strikes are fine as a starting point and for drills where you're working to develop that "aiki feel" that's so much fun. But they need to progress to more realistic strikes. Adding in some resistance will also go a long way to cleaning up the gaps in movement. Both of those will almost certainly lead to smaller movements in a lot of techniques. I believe the purpose of the large movements was to accentuate the need for aiki, taking away some of the shorter movements that work without it. They need those shorter movements back, and need to learn to operate their techniques both with and without aiki - many techniques function on both sides of that.
I'd also get them back into striking more (of all the schools I've been in, I've never seen an instructor teaching strikes, except with weapons). That opens the door for better resistance, and better understanding of how strikes can open the door for their techniques.
Mind you, some of this is also where I went in refining my NGA curriculum, so the problem (as you said) isn't exclusive to Aikido. I see some schools in NGA heading the same way Aikido schools seem to have gone - getting softer, bigger motions, and less emphasis on strikes (which also leads to worse attacks).