On Nov 24, 4:19*am, wrote:

He wrote:

"They may even provide a service, by providing some pressure that
ensures these things really are designed to survive a launch failure."

The "may" applies only to the phrase before the comma. *The portion
after the comma is presented as a fact without any qualification.

No; the portion beginning with the word "by" is a subordinate clause
that *describes* the nature of the service that they "may" provide.

If he had written:

"They may even provide a service, and they do provide some pressure
that ensures these things really are designed to survive a launch
failure," _then_ your claim would be valid.

John Savard