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The facts are an example of regulation arbitrage, not some fatal flaw in Title 2 / Common Carrier. The 'Fatal Flaw' is the FCC doesn't say "All consumer facing ISPs are Common Carriers under Title 2" but "Technology X is under Title II and Technology Y is not".
Even from your own article "In this case what has Wall Street's heart all a flutter is the possibility for Verizon to shed all union-related workers and their pensions."
Dumping a ton of long term liabilities [pensions, union contracts] is the core reason. Divesting of some high cost DSL markets for an infrastructure provider [which is the regions they are talking about in the article, Upstate New York isn't exactly a market with roaring profitability due to low population density] is a secondary concern in that article and it basically said they invested 24 billion?
Title 2 doesn't require Union workers.
It also isn't a reasonable comparison to say "Title 2 Technology A lost to Non-Title 2 Technology B because Title 2 doesn't work" with such weak evidence. Why yes, investors want to reduce liabilities and cost centers. Magically, if you can enter a market with a lower liability and costs [due to less regulation] you prefer that option. If that isn't an option, magically, the market functions on an even playing field and everything competes on the merits of the technologies.
Somehow, magically, in places like Europe you get better ISP performance per $ with similar profit margins. Maybe the problem is not too much regulation, but how the regulation is being applied?