I feel like this is a poorly written article. It doesn't present any sort of position, and the initial anecdote about the customer service issues and the author's indecision regarding support for Paypal have nothing to do with the subsequent issue, which (as has been stated) was simply a matter of not understanding Paypal's terms of service in the first place.
I guess I'm not sure what the point is. This doesn't seem to have anything to do with Paypal's poor customer service, nor does it seem to condemn Paypal's policy of not allowing trusts. It just seems to be another "me-too" article about no longer supporting Paypal as a method of payment, and it wasn't even a conscious choice by the business to discontinue that support.