The $5 credit offer by AT&T to affected customers is a gesture of goodwill that might mitigate some customer dissatisfaction but is unlikely to have a significant financial impact on the company. The assurance from CEO John Stankey that the outage costs are manageable and will not affect the company's 2024 goals or financial guidance, combined with the reported increase in Q4 2023 revenues, suggests a neutral to slightly positive short-term impact on AT&T's stock. The ongoing FCC investigation could introduce uncertainty, but the company's proactive measures and financial performance indicators provide some counterbalance.