What's new with Chodosh - Facts on the ground | Why are people so lenient about a Din in the Torah?

Why do we rely on leniency these day when the Heter was due to שעת הדחק and we don’t have a shortage of food? If the Heter is based on Safek, nowadays the Safek is verifiable and can’t be relied upon If a store has information posted that it’s not Yoshon – there’s no Safek at all – what do people rely on? Why are people making on Stam Cholov which is maybe a Safek Derabbanan and not on this? If a person needed to eat because of פיקוח נפש and it was a question of הקל הקל תחלה should he eat...