No, if you have been eating it for years and haven't had a problem, you likely won't. It's like you said, like any other allergic reaction. Having spent 3 days in the hospital a few years back as a result of consuming this product, I can attest that there are definitely risks. Also, oddly, I received an email from the company's representative urging me not to consume the product again (after contacting them about my reaction) because the reactions (if you're allergic) are increasingly more severe. I had suggested trying it again to see if it was the source of my reaction ... so, they are definitely aware of a problem for some people, too.
I also personally find the fact that they use factory grown fungus as the protein source more than a little unsettling, ha! But I should have paid more attention before consuming it, too. Fortunately there are many excellent and safe vegan and vegetarian options out there, so it hasn't mattered much for my family's food choices.
I think the main group pursuing having this banned may have settled for a warning on the labeling. In any case, I certainly didn't mean to offend or upset, just make you aware there's a possibility a product you love might not be available once you move. Having had many products I adore go away for one reason or another over the years, I know it's always hard to have to find a replacement.
Hope all goes well with your move.