The tricky part of a 2 month free trial is that it's not nearly enough time to explore the offerings unless you're a company that's already got a product ready to go and staff to migrate it full-time (and I assume the latter is exactly who you'd want to charge full price to). I took advantage of the 2-month GCP free trial, and ended up using 1 GCE instance, 2 Cloud Storage buckets, your cloud storage webhosting & DNS, and....that's it. I don't even really know what other services exist. It takes time to program things...by the time you get around to realizing that there are other GCP services that may help your project, the trial's already over.

Since there's a dollar cap as well, I don't see the problem with extending the trial out to a long calendar time-period.