I also flew with TK recently, though can't say I was annoyed by the meal service change, because the meal in itself was very pleasant. And honestly, I didn't look at it at cost-cutting, because creating new packaging for the meal and new hygiene kits from scratch during this time doesn't seem much like a cost-cutting strategy. Also, very similar social distancing strategies are being applied in the restaurants in the country, so the airline seems to be implementing these as well to ease the mind of passengers when onboard. I also heard that this switch to pre-packaged meals that most airlines are doing is to stop interaction between cabin crew and passengers as recommended by IATA. So it's very understandable for them to make such changes to comply with international aviation guidelines.