I think some people do get caught up in various activities like gaming due to avoiding life circumstances etc (this isn't unique to gaming though - people can avoid problems through various activities). I can't agree that gaming is any worse than any of the other potential activities people use to avoid their problems though. If it is just avoiding problems in the rest of their lives in reality every escape should also be classed as (name of escape) disorder. Gaming is no worse than any other escape. Escapes from stress can be good too and gaming is great for reducing stress, but it is terrible if someone always use something to escape and just never deals with the problems they are trying to escape (this gets tricky when the problem is something out of their direct control though but that's when you despite many failures just have to keep trying).

As for the negative consequences bit, that is too vague. If someone frequently has negative consequences, that is cause for concern and may indicate a behavioural addiction etc. If someone suffers the negative consequences of sleep deprivation from one night out of the blue playing WOW until 2 AM with a partner, that is just a random binge and no intelligent person would think a one off incident indicates a full blown disorder. It is too vague.

Also some people don't have gaming as a profession but do make lets plays etc for a hobby. The hobbyist who puts in a lot of hours isn't disordered but simply motivated and loves their hobby and they may love their hobby enough for it to take preference over another random interest.

Their conditions are too vague but behaviour based addictions can certainly be a thing - just not every case that matches some of their stipulation is a case of that.