In all four large tech companies I've worked for, and my father's factory job, this is the up front stated policy on pension contributions.

I've worked in a few places with similar policies. Lots of companies will match your 401k contributions (up to a limit), but the matching funds have a "vesting" period (typically a year or two). Stock options are often offered under similar terms.

I don't see any reason for this article to exist other than to try to "shame" Stripe for doing what many other companies also do.