Actually, not vague. So, there's a tool which 60% of companies use, and it has one major issue which has a fix but is very hard and is unlikely that they'll fix.
Major issue to who? You? How do you know it's a major issue for others? How do you know that others will value this fix as much as you do?
> has a fix but is very hard
> I just built a data layer to solve this.
These seem like conflicting statements, maybe I am reading too much into it but your choice to use the word "just" makes it seem nonchalant, like you whipped up the data layer in week, and if you did then the fix wasn't "very hard", and the code owners of the tool could do the same easily.
I have to agree, your question is way too cryptic and vague for you to get any real useful feedback. You need to discuss with someone you trust, or with some advisors that are willing to sign an NDA. Or just put it out there, who really cares how others react? If people like it cool, if not, oh well, at least you tried.
I just built a data layer to solve this.