This is my first year with 'Spring Beauty', so I don't know how it will do long term, but for what it's worth we have had strong and very persistent winds and I haven't noticed any flopping problems worse than with other crocuses. As the bloom is getting older it flops more easily, but fresh blooms stand upright. This is fairly normal, I think. The winds are strong enough to knock over other spring bloomers, but perhaps not as strong as you have experienced. We do get some windbreak from the forest, but also more shade than desirable.