Slack interview questions

I interviewed right after their acquisition of Salesforce. My recruiter call went well. I shared with them my current salary, and mentioned I would be open to negotiate as I knew I was being paid well (especially for a smaller company). They canceled the hiring manager interview with VERY little notice, as they felt they "could not meet my salary expectations". This was very disappointing, because I appreciate slacks products, and the remote options they mentioned for the role and would have accepted an offer lower than my current (like i had mentioned)