I agree with all of this. And, I wish shows would acknowledge that sometimes people go through heavy drinking phases but aren't alcoholics. Sometimes, especially during high stress situations, people drink too much, and it doesn't always mean alcoholism. I'm not even sure that I would think Grace has a drinking problem, if it wasn't for the hidden booze. The other shitty decisions, including driving, I can see as her drinking too much because her life has been totally uprooted and she's "handling" it by numbing the pain. But when you have booze stashed all over the house (and kayak), your drinking has turned the corner from temporary self-medicating to something more serious.
That said, it drives me crazy that on tv, whenever someone goes on a bender after a tragic event, they're an alcoholic. Sometimes depressed/ stressed people drink too much, eat too much, sleep too much, whatever- doesn't mean they're an alcoholic, or addicted to food, or suffering from narcolepsy. I'd love to see a story line on tv in which someone suffers tragedy or chaos, drinks a shit-ton for a while, and then has to deal with the ramifications of that, without going to rehab and never drinking again.