It probably is, actually. Like many payment processors, they allow potential clients to create test/demo accounts to try out the service using fake money, a feature which is sometimes abused by scammers to trick victims into believing they can access their money through a legitimate service (which doesn't even know about the scam, leading to additional confusion and frustration when their support is contacted, which the scammer may exploit further).
In addition to the merchant test-account, Bitpay allows users to create a test-wallet as well, where they use blockchain testnet. This option is available not only with bitcoin but with other testnet blockchains supported by Bitpay, like Ripple, BitcoinCash, Ethereum (expect ERC20 tokens), and some others.
Usually, victims don't know about blockchain testnets or addresses formats.
This makes me think if Bitpay/Copay wallets are encouraging such incidents to happen for having its testnet operations visually similar to the real mainnet.
