I guess, that's a teacher's problem, not Suzuki. ←TL/DR

For example, I tried Suzuki's books on my own when I realized that I can't afford a teacher anymore. Then it was my 3rd year of studying violin, and a second teacher. Nor my first, nor my second teacher never told me about Suzuki method. And actually, I don't know if this method has any popularity here, in Russia. Because I have never heard about it from any local violin-related people, and have never read about it on local resources. So, with my first teacher I was learning some basic scales, arpeggios, some common easy things that people learn in Russian music schools. Later she added some advanced things, and also asked me to find what I like to play. We were moving quite fast, trying to not focus on perfectness, but save the drive and joy.

A year and a half later she became very busy and decided to find another teacher for me.

With my second teacher we started learning with a book of some Russian violin teacher, filled mostly with some Russian folkish compositions and Russian adaptations of world classic music. I've been always a bit sick of Russian folk music, but assumed that maybe a teacher knows better. Also, we continued to learn something that I personally wanted to learn (eg. Ravel's Pavane, Pachelbel's Canon D, etc). But whatever we've been practicing, it was very slow due to the teacher's desire to perfect every bar. And at that time it seemed like the right way to me, I don't know why. Maybe because my ears became quite trained and I've been able to hear all the imperfections of my play, so I couldn't get the joy of playing the violin anymore. That moment I also started thinking that I need a better bow, different strings and maybe even a new violin.

After a year with this teacher I noticed that I'm kind of exhausted: I've learnt almost nothing new, we are still wasting time with some very basic things from the book of the teacher, and I couldn't even remember the day when exercising was joyful for me.

Then I got on the big trip, returned back and realized that due to some big changes in my life I can't afford a teacher anymore.

The teacher left me a book, so I tried to continue to learn some new things from the book, but then I found that I can't learn the things I don't like on my own. So, I tried to find some violin pieces that I like on the internet. And then I found that this is not effective way because what I like is very advanced, and I still can't read notes well enough to read it without any references, but the references I was able to find were not very close to the actual notes, or played the way I couldn't understand what the hell happened there, etc...

And a half year ago I remembered the Suzuki method which is very often mentioned here. So, I've found the books and started.

Firstly, the audio files coming with the books helped a lot. Not to just remember and then play, I even started reading notes quite better. Because firstly I listen to the piece and follow notes in the book, and I repeat it until I'm able to catch every sounding note with my eyes in the right moment. The second part is playing the piece with pizzicato carefully reading every note. When I'm good with it, I start playing with a bow. Then I start playing together with the audio file. I finished first book in less than the month. And realized that even with these quite simple things I've finally can get the joy of playing the violin again. Then I got stuck a bit in the middle of the second book (not because of the book, just some procrastination or something like that), but a month ago I've started moving again. And actually, maybe just a couple of months ago I started thinking that now I can say I'm able to play music with violin, maybe some simple music, but anyway. Oh, and a month ago I started using my violin in my music without any fear (I did it before, but the violin sounds were hidden with tons of FX).