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Yeah, unless you're using bucketloads the ph also balances out quickly. I'd be more worried about overdoing it for any nitrogen sensitive plants rather than the acidity.
We were mixing it in with garden waste, and probably best there but now tend to just chuck it in with all our other food waste (Bokashi) as the acidity seems to keep unwanted moulds under control whilst it ferments and does its thing
Only potential issue with this is it's quite acidic. If it's just your own used grounds I doubt the quantity would matter but if you're getting it by the butt load from a commercial operation you might end up changing the ph of your soil considerably. So, perfect for azaleas, camelias etc if you have them, but terrible for brassicas etc