For me the first NExus 7 tablet was a prime example of what happens, released - ran fine, Android update and became darn near unusable, and then dropped.
Android today needs 2 gig of ram to work, less and the cracks show. Tomorrow it will be more.
This is always a repeated cycle in operating systems, they bloat up, then eventually have a cycle of removing the fat. Windows been thru this cycle many times.
But calling it Android Go Edition, may sound cool as a marketing buzz, but utterly distracts from what it is as well as confusing given GoLang. More so as todays entry level phones where only a couple of years ago, premium specifications. Things move on and progress, but the amount of artificial obsoletion of mobile phones today by Android at a consumer level is frankly scary and avoidable. Two years from new to being forgotten is a recent change in mobile phones and without custommade roms, unavoidable as you effectively get forced to buy a new phone, just to stay secure.
Why can't they have LTE editions for phones.