Ahhh... The oil wars... Hmmmm.. gonna grab a bucket of popcorn, and let the flames begin!
My only opinion is that some stuff cares, and some stuff just doesn't. When I met my girlfriend, about ten years ago, I watched in horror as she refueled her POS Homelite leaf blower.. She took a can of last year's gas, and dumped a half gallon of it into a one gallon jug. She then proceeded to grab a half full quart of regular engine oil, and upended it into the stale gas. Glug glug.. that was her mix ratio.. "Glug , glug, into a half gallon of stale gas. She gave the gas can a good shake, and then fueled the leaf blower. It started on the third pull, and ran just fine.
Since then, the POS Homelite has received nothing but Premium, Ethanol free gas, mixed properly with a Premium synthetic. Other than needing ( about 5 years ago), a hit of Seafoam to get rid of the " I won't run without half choke snotties", it's still basically bulletproof, at over 15 years old. It just doesn't care. New spark plug and blew out the air filter a couple of years ago.. Other than that ... zero maintenance. Really.. how much are you gonna invest in a $100.00 POS. Sadly, it just won't die.
On the other hand, I've got a Shindawa 802 back pack blower.. Give it Premium Ethanol free gas, with Premium synthetic oil, that's over 45 days old? Yeah, it'll start and run, but it's got to be fully warm before it runs right.
Anyone know why there's so much variation between equipment? I get it that when something is highly stressed ( HIGH OUTPUT), that it needs better everything, But, what is the underlying reason?