Absolutely not my friend.
Sure, Dalbellos and flexons have a last that is about 98.. or 99 depending... but with that said, there is a way to make them fit you.
The reason Flexons and Dalbellos kryptons are so good is because they are like taking a plug boot from racing, with all of its stiffness and absolutely insane responsiveness, and making it into a 3 piece boot, so it can flex a little bit, still hold that rigidity, and allow for some comfort as well.
Now, if you know anything about plug boots... you will know that the plastic is INSANELY thick. ussually close to a centimeter thick. a flexon or krypton is the same kinda thing.. just maybe not really as thick. close though.
This means that if you take it to your local bootfitter, and if they have the tools to do so, they can actually drill out about 2 to 4 millimeters out of the shell in the toebox to make it fit you. Also, the tounge can be refitted to fit the way your arch goes, and so on. the boot is thick enough in the shell, that even taking out 4 millimeters in the toebox would not hamper your overall performance, and would not make the boot any less stiff. they would still be half a cm thick by that point, and plenty capable of holding the same rigidity, or at least similar rigidity.
They are one of the most customizable, and incredble boots on the market. I'm thinking about getting some this year (either that or just getting some superchargers.. which already fit me, and are still plenty good being inject mold boots)
But yes, that is the story of these boots.