I would think it would be a manufacturer call out because it's unlikely anyone else would want to take the risk and charge for that. There's a very good chance that soldering the wire to the connector and putting some tape on it would cure it forever.
Bear in mind that any significant arcing should trip the breaker and most electricians are pulling lamp connectors out of ceilings that look worse than that. So you should be covered for a diy fix.
I would think it would be a manufacturer call out because it's unlikely anyone else would want to take the risk and charge for that. There's a very good chance that soldering the wire to the connector and putting some tape on it would cure it forever.
Bear in mind that any significant arcing should trip the breaker and most electricians are pulling lamp connectors out of ceilings that look worse than that. So you should be covered for a diy fix.