Let me let you in on a little secret. Slack makes TONS of money. Take that as a truth and then think about why they're still reporting they're losing money..
No. Let me put it this way. Strategically from a bunch of directions. Even if they were making 10x the money. They would still be reporting the same steady losses.
Are you inferring that the financials in the S-1 are being misrepresented? If so, that's quite the accusation!