Is this an issue with all networks that have a "restrictive" peering policy, as shown in [0], or is Deutsche Telekom particularly problematic in this case? [0]

Is this an issue with all networks that have a "restrictive" peering policy, as shown in [0], or is Deutsche Telekom particularly problematic in this case? [0] https://www.peeringdb.com/net/196 https://www.peeringdb.com/net/196