That is the implication. Alcoholism is an affliction wherein something that's fairly benign in small doses can be a significant detriment to the individual if consumptions falls out of balance. In this way, being ever-available and ever-connected is a bad thing; there's nothing intrinsically wrong with it in small and balanced doses, but in high doses it can cause significant neuroses through withdrawal. It follows that, just as alcohol is the cause of alcoholism, the phone _is_ the ultimate source of anxiety. It provides dopamine, you feel bad when you don't get it.
An alternative angle is this:
If you're an addict and you get withdrawal symptoms, having more of your substance does not alleviate your addition. The symptom of withdrawal, not having the phone, generates anxiety. By increasing the time that you're connected and removing natural/forced break periods, you're raising the threshold that you need to maintain to not feel anxious. In doing so, you've created a situation where it will be harder to make break time and when you do, it'll feel worse.
Here's an excerpt, link at the bottom, of one of an increasing number of studies that describe the negative health impact of communication technology dependency:
> The results indicate that depression, anxiety, and sleep quality may be associated with smartphone overuse. Such overuse may lead to depression and/or anxiety, which can in turn result in sleep problems. University students with high depression and anxiety scores should be carefully monitored for smartphone addiction.
Yet, we want to sell everyone smart-watches so that they'll never miss a beat...
https://www.ncbi.nlm.nih.gov/pubmed/26132913