VAERS is a super early signal self-reported database, why on earth would anyone link to it for public consumption? Should they also link to reddit.com/r/hypochondriac? VAERS should exist and researcher should (and do) pay attention to it, but it's absolutely not anything close to an actual source of actual information.

Trial results, yes, the literal vaccine recommendation bulletins link to their backing data: https://www.cdc.gov/acip/grade/covid-19-pfizer-biontech-vacc...