Machida is more then just Shotokan though. I can see Shotokan being good for MMA in terms of timing and what not, but in my experience in sparring stand up with them whether in knockdown karate rules or kick boxing rules, they dont last very long. :icon_chee
This is coming from a Kyokushin guy --- I look at shotokan very highly, mind you I'm referring in particular to the JKA.
There are many things Kyokushin guys can learn from shotokan karateka IMHO - and that shotokan in general does a better job of teaching a lot of technical skills, fundamentals & intangibles miles better than Kyokushin.
For instance look at basic stances and the difference in emphasis between the two Karate's - shotokan delves into weight distributions, bio-mechanics, posture etc etc in a way that Kyokushin barely even touches - you don't get the same emphasis, even remotely - and while it may not seem important at first glance - it is extremely important, in both general Karate training and in kumite or fighting application, it's a must to have that emphasis.
Learning basic stances with the 'needed' emphasis such as posture, weight distribution, biomechanics - teaches you intangibles that translate to kumite or fighting.
The movement is obviously something that is quite a noticeable advantage, but I think the greatest advantage shotokan cultivates that Kyokushin does not (at least to the same degree) - is teaching it's practitioners how to create space & how to make use of it - distance, timing & positioning are all subtly linked - and shotokan does a magnificent job in trying to impart these traits into it's students - in Kyokushin partly because of the knockdown karate, the emphasis for such things is not there the way it is in shotokan.
Very few Kyokushin guys display all those traits and the one's that do, always tend to become great or legendary Kyokushin karateka like Kancho Matsui & Michael Thompson - I think back in the day, much more importance was given to those things and less importance is given to them today in KK. As a Kyokushin guy to prove my point - when is the last time you saw someone in knockdown with Matsui's skill or of his calibre.....it's been at over 30 years and no-one has come even remotely close.....have we seen anyone with his sense of positioning, timing or sense of distance.....I can readily say the closest I saw of it was 14 years ago when Kazumi/Filho still competed - you rarely see it at all nowadays.
I'm not saying it's easy to get to Matsui's level, what I'm trying to point out is the shift in emphasis - what made Matsui Kancho the greatest were those 3 things I've mentioned, he had them down to the letter - it's not a silly observation. Watch the 4th or 5th world tournament & compare it to the 10th world tournament - completely different skillsets & way of approaching knockdown than that of KK guys today - and it has much to do with the instruction being given then & now. Although with shinkyokushin & with Tsukamoto before he retired we saw that old approach being used in modern knockdown karate & even in his older age, Tsukamoto was giving younger/fitter fighters beatings precisely because they didn't have the same intangibles down ----- precisely because Tsukamoto was brought up in that style of fighting in Shihan Hiroshige's dojo along with Midori, Kazumi & Yamaki.
Anyway this is getting off-topic lol but felt like giving my opinion on the topic.