The drive to Hemlock runs about 14 miles from Midland, which is close enough that a maintenance visit isn't an all-day affair, but far enough that nobody's stopping by twice in a week to fix something they should have caught the first time. That's the real argument for a full tune-up instead of a quick look: when a tech is already out at your place, it makes sense to check the whole system once rather than drive back out for a second small problem a month later.
Hemlock's houses mostly went up around 1969, which puts a lot of doors and openers on their second or even third round of hardware by now. Original torsion springs from a house built in that era are long gone, but a lot of the replacement work done over the decades used whatever spring or track matched what was already there, not necessarily what the door needs today. That mismatch is common enough in homes from this build era that it's worth having someone check the balance, not just the noise.
Winters here fall in the severe cold band, and cold makes lubricant thick, metal brittle, and small imbalances worse. A door that was fine in September can bind in January for reasons that have nothing to do with the opener.