Exercise 3: Why the Accessibility Deviation Is Legitimate — Possible Solution
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WHY THE BUG CLASSIFIES AS SEV3 BY THE NUMBERS
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Per this chapter, "a bug affecting only screen-reader accessibility,
with a functional visual workaround for sighted users, would classify
as SEV3 by the numbers alone - a small percentage of the user base, a
workaround exists." Applying the standard SEV criteria mechanically
produces a genuine, correctly-derived SEV3 result.

WHY PRIORITIZING IT HIGHER IS LEGITIMATE, NOT A FAILURE
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Per this chapter, this is legitimate "given a real accessibility/
compliance obligation that the raw percentage-affected metric was
never designed to capture." The SEV framework's own criteria (percent
of users affected, whether a workaround exists) simply don't account
for factors like legal/compliance obligations - the framework isn't
wrong about what it measures, it's just not designed to measure
everything relevant to every decision. Recognizing that gap and
consciously choosing to act on a factor the framework doesn't capture
is different from the framework producing an incorrect result.

THE CONDITION THIS CHAPTER SAYS MAKES IT LEGITIMATE
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Per this chapter's warn-box, a deviation is only legitimate "when that
deviation, and the specific reason for it, is written down explicitly"
- and the worked example itself specifies writing it into the ticket
as: "prioritized above its raw SEV3 classification due to our
accessibility commitment." Documenting the deviation and its reason
is what distinguishes a deliberate, legitimate choice from silent
confusion about how the framework is supposed to work.

WHY THIS WORKS AS AN ANSWER
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It explains why the SEV3 classification is itself correct given the
framework's own criteria, explains why deviating from it addresses a
real factor the framework wasn't designed to capture, and states the
specific documentation requirement the chapter gives for the deviation
to count as legitimate.