Aren't they also one of the academic publishers that's been criticized for charging for access to articles, and the authors don't get anything from the publication/distribution?
I have been e-mailing authors directly for access to the article and have been successful most of the time. Maybe once or twice, the e-mails go unanswered. In one case, the primary author had died (a subsequent search linked a news article showing a skiing accident). In another case, the author had simply moved to a different university thus the e-mail in the paper was outdated.
It’s just as much a waste of grant money too. Whether that comes from or from a nonprofit, padding the pockets of some publishing company gatekeeper is in no way what anyone should expect their money to go toward.