It isn't two weeks until end of quarter. Like many businesses, Salesforce's fiscal calendar runs Feb 1 to Jan 31. Slack's did, too, before the acquisition. Q3 ends on Oct 31.
The time to complete the paperwork on a $200k/yr deal is longer than 2 weeks. Especially if the customer is expected to fork over 4000% more than what they were paying.
B2B procurement in this range can take anywhere from a few days to a year, but I'm not sure what that has to do with the very specific and demonstrably false claim I was responding to.