It can backfire on them every so often. I took a Ryanair flight for a short hop when on vacation in the eu back before COVID. My son had the vomits as the plane was set for landing. Apparently one of the “cost saving” measures was eliminating the seat back pocket and the barf bags.
Well, Ryanair, jokes on you - vomit ended up everywhere in the aircraft cabin due to you saving a few cents.