Yes, this sounds like a “small war, not many dead” situation. If you can get a committee decision (from a ringaround, perhaps) that the kettle and fridge will stay and the owners corp will pay for the electricity, at least the grumbler will have someone to grumble to.
But, honestly, some people just aren’t happy until they have something to complain about. Just wait till the deep-fat fryer, microwave, rice cooker and George Foreman grill turn up.
But seriously, a good compromise would be to get the committe to agree on what is allowed and what isn’t (see above list of appliances).