My view, rather than justify the status quo , is meant to incite changes. ISPs should have adopted infrastructure sharing earlier like its happening in Tanzania (http://www.6telecoms.co.tz/) Instead, each was busy digging and laying their own infrastructure. In my opinion, we should have about 3 infrastructure companies ( independent, with no business/sisters whatsoever in retail) and then have ISPs leasing infrastructure from this. This helps lower the cost and they can tackle the government when the government challenges them. Several rural county councils have been reported to charge higher than the Nairobi city council for way leaves. At the same time, Fiber vandalism form competitors would be reduced as it would affect all ISPs commonly.
From what I was meant to understand, one of the large nationwide carriers was at a time the leading vandal of their competitors. Sadly , to date, the carrier is still trying to grapple with the market.