In case you haven’t noticed, this is a FREE service made possible by sponsors. It’s not “unprofessional” because it’s not a “professional” service. You get what you pay for, and you have paid nothing.
The time frame is 3 months because that is required in order to reduce the scope for abuse of the FREE service.
If you want professional support, SLAs, long certificate time spans, use one of the many and varied commercial options.