Joke's on them
The larger customers tend to have people in them that know all about Broadcom and have been working on moving off of VMWare for months now.
The problem is trust.
Broadcom's value proposition with VMWare presupposes that the customer trusts VMWare enough to put their entire virtualization stack in their product suite.
What will keep Broadcom from jacking up the price during the next renewal after you have fully migrated to their stack?
What will keep Broadcom from cutting resources used to maintain their product after enough people migrate fully to their stack?
I could keep going but you get the idea. Broadcom destroys software vendors. They did this with Symantec and will do it again here. In about 5 years maybe 10% of people currently using VMWare will be doing so.