On its own, it doesn't. But if they don't show some interest in what the business is doing as well, it's a red flag, because they will probably end up building something the business doesn't want or need, or fulfill requirements without foresight or understanding into future business direction, but rather based on what they find stimulating (aka more complicated than necessary, at the limits of their understanding).

> Taking it a step further, who gets excited about "[solving] problems the business has like too many bugs, or slow runtime, or missing features". That certainly sounds like what someone would say to please their interviewer more than anything.

Anybody working in a small team where you have embedded people from all aspects of the business and work together to make the company successful.

So, me, and everyone I'm interested in working with?

If you're in a giant company and the only satisfaction you can get from your work is the toys you get to play with, to me it's just a sign of corporate disfunction and misalignment between business and engineering.