Please. Major upgrades happen every single day among the various VPS providers. And whilst it is notable it isn't particularly useful to most Linode customers. In fact 99% won't see any difference at all.

Had they actually decided to offer SSD based instances to compete with the likes of DigitalOcean then we would have something interesting.

Also this is a terrible way for a company to earn trust. It should be earned based on their behaviour during the bad times. And we know how appalling Linode handles those.