I think the argument is pretty simple:
- Plastic is bad (environment, microplastics, etc) - We should minimize it
That doesn't necessitate a "all the way to zero or don't bother" logic, which what you're saying reads as.
Coffee pods machines have been an environmental nightmare, great to see a growing trend that addresses this.
"You say reducing plastic is good for the environment, but then you drink coffee which is bad for the environment, so you shouldn't bother even reducing plastic"
"EVs still use energy that's been generated from gas, even if its a lot less, so you might as well just drive a diesel powered pick up truck"
I still drink coffee regularly so am not going to say people should stop doing what I continue to do but it's worth it for coffee drinkers to be thoughtful about the impact of their consumption.