yeah it should be easily extended. I mean, I thought I read through the Thailand Pass descriptions, succeeded in complying with its requirements, but I somehow came away with the impression- I thought I read - that the pass granted 60 days in Thailand. Apparently that was not an accurate reading on my part.
I had acquired the required documents for the Thailand Pass. I am aware that US visa requirements can be daunting and unfair, depending on what country you come from. Same for Thailand. Thailand is, however, more dependent on tourism for their economy.